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configure.in
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# NOTE1: to do a proper Win64 cross compile from Linux use ./configure --host=x86_64-w64-mingw32
#
# NOTE2: $build refers to the platform where this script is running
# $host refers to the platform where the final code will run
dnl Process this file with autoconf to produce a configure script.
dnl
dnl OPP_CHECK_LIB( -- macro to check availability of a library
dnl $1: LIBRARY-NAME, -- descriptive name (only for printout)
dnl $2: HEADER, -- optional: header file to #include
dnl $3: FUNCTION, -- optional: function WITH ARG LIST, e.g. floor(0.5)
dnl $4: CFLAGS, -- optional: compiler flags
dnl $5: LDFLAGS, -- optional: linker flags
dnl $6: RESULT-VAR -- will contain "yes" or "no"
dnl $7: ACTION-IF-FOUND
dnl $8: ACTION-IF-NOT-FOUND
dnl )
dnl
AC_DEFUN(OPP_CHECK_LIB,[
save_CXXFLAGS=$CXXFLAGS
save_LIBS=$LIBS
CXXFLAGS="$4"
LIBS="$5"
AC_MSG_CHECKING(for $1 with CFLAGS="$4" LIBS="$5")
AC_LINK_IFELSE(
[AC_LANG_PROGRAM([[#include <$2>]], [[$3;]])],
[AC_MSG_RESULT(yes); $6=yes; $7],
[AC_MSG_RESULT(no); $6=no; $8])
CXXFLAGS=$save_CXXFLAGS
LIBS=$save_LIBS
])
dnl
dnl Same as OPP_CHECK_LIB(), but also tries to run the program (uses
dnl AC_RUN_IFELSE instead of AC_LINK_IFELSE).
dnl
dnl OPP_CHECK_AND_RUN_LIB( -- macro to check availability of a library
dnl $1: LIBRARY-NAME, -- descriptive name (only for printout)
dnl $2: HEADER, -- optional: header file to #include
dnl $3: FUNCTION, -- optional: function WITH ARG LIST, e.g. floor(0.5)
dnl $4: CFLAGS, -- optional: compiler flags
dnl $5: LDFLAGS, -- optional: linker flags
dnl $6: RESULT-VAR -- will contain "yes" or "no"
dnl $7: ACTION-IF-FOUND
dnl $8: ACTION-IF-NOT-FOUND
dnl )
dnl
AC_DEFUN(OPP_CHECK_AND_RUN_LIB,[
save_CXXFLAGS=$CXXFLAGS
save_LIBS=$LIBS
CXXFLAGS="$4"
LIBS="$5"
AC_MSG_CHECKING(for $1 with CFLAGS="$4" LIBS="$5")
AC_RUN_IFELSE(
[AC_LANG_PROGRAM([[#include <$2>]], [[$3;]])],
[AC_MSG_RESULT(yes); $6=yes; $7],
[AC_MSG_RESULT(no); $6=no; $8])
CXXFLAGS=$save_CXXFLAGS
LIBS=$save_LIBS
])
dnl
dnl OPP_CHECK_LIB_NOLINK( -- macro to check availability of a library
dnl $1: LIBRARY-NAME, -- descriptive name (only for printout)
dnl $2: HEADER, -- optional: header file to #include
dnl $3: FUNCTION, -- optional: function WITH ARG LIST, e.g. floor(0.5)
dnl $4: CFLAGS, -- optional: compiler flags
dnl $5: RESULT-VAR -- will contain "yes" or "no"
dnl $6: ACTION-IF-FOUND
dnl $7: ACTION-IF-NOT-FOUND
dnl )
dnl
AC_DEFUN(OPP_CHECK_LIB_NOLINK,[
save_CXXFLAGS=$CXXFLAGS
CXXFLAGS="$4"
AC_MSG_CHECKING(for $1 with CFLAGS="$4")
AC_TRY_COMPILE(
[#include <$2>], [$3;],
[AC_MSG_RESULT(yes); $5=yes; $6],
[AC_MSG_RESULT(no); $5=no; $7])
CXXFLAGS=$save_CXXFLAGS
])
# usage: AC_PROG_CXX_OPTION(--compiler-option, if-supported, if-unsupported)
AC_DEFUN([AC_PROG_CXX_OPTION], [
AC_MSG_CHECKING([whether $CXX supports $1])
ac_save_CXX="$CXX"
CXX="$CXX $1"
AC_LINK_IFELSE([AC_LANG_PROGRAM()],[
AC_MSG_RESULT([yes])
CXX="$ac_save_CXX"
$2
], [
AC_MSG_RESULT([no])
CXX="$ac_save_CXX"
$3
])
])
#
# Autoconf initialization
#
AC_INIT
#
# OMNeT++/OMNEST version number
#
OMNETPP_PRODUCT="OMNeT++"
OMNETPP_RELEASE=$(cat Version)
OMNETPP_VERSION=$(cat Version | sed 's/^.*-//')
OMNETPP_BUILDID="internal"
#
# Edition identifier in banner: Academic / Commercial / Evaluation
OMNETPP_EDITION="Academic Public License -- NOT FOR COMMERCIAL USE"
# We'll collect in this variable the components we've detected problems with
OPP_PROBLEM_PACKAGES=
# check if 'setenv' was correctly sourced
OMNETPP_ROOT_DIR=$(cd $(dirname "$0"); pwd)
if test "$__omnetpp_root_dir" = "$OMNETPP_ROOT_DIR" -a -z "${PATH##*${OMNETPP_ROOT_DIR}/bin:*}" -a -z "${PYTHONPATH##*${OMNETPP_ROOT_DIR}/python*}"; then # this uses magic substring matching with parameter expansion
AC_MSG_NOTICE([Environment variables (PATH and PYTHONPATH) are correctly set.])
else
AC_MSG_ERROR([Before running 'configure', please use 'source setenv' to set up your environment.])
fi
# Check if configure.user exists. If not, copy the default one there.
if test ! -f ./configure.user ; then
AC_MSG_WARN(['configure.user' is not present in the installation root. Creating a default version.])
cp ./configure.user.dist ./configure.user
fi
#----------------------
# Read user settings (and allow override the above settings)
#----------------------
AC_MSG_NOTICE(Reading configure.user for your custom settings.)
. ./configure.user
# force MS-ABI / x64 compatible target if requested by the user
if test "$USE_MS_ABI" = "yes"; then
CFLAGS="$CFLAGS --target=x86_64-windows-msvc"
CXXFLAGS="$CXXFLAGS --target=x86_64-windows-msvc"
LDFLAGS="$LDFLAGS --target=x86_64-windows-msvc"
fi
AC_CONFIG_SRCDIR(include/omnetpp.h)
AC_LANG(C++)
AC_CONFIG_AUX_DIR(src/utils)
AC_CANONICAL_HOST()
# check command line arguments and override the values set in configure.user with them
for arg in $ac_configure_args
do
stripped_arg=$(echo $arg | sed "s/^\([']\)\(.*\)\1\$/\2/g")
case $stripped_arg in
-* ) continue ;;
*=* ) eval $stripped_arg ;;
esac
done
#------------------------------------
# set default library suffixes. May be already defined
# with system/arch specific values
#------------------------------------
A_LIB_SUFFIX=${A_LIB_SUFFIX:-".a"}
SO_LIB_SUFFIX=${SO_LIB_SUFFIX:-".so"}
DLL_LIB_SUFFIX=${DLL_LIB_SUFFIX:-".dll"}
IMPLIB_SUFFIX=${IMPLIB_SUFFIX:-".dll.a"}
IMPDEF_SUFFIX=${IMPDEF_SUFFIX:-".def"}
EXE_SUFFIX=
SHARED_LIB_SUFFIX='$(SO_LIB_SUFFIX)'
LIB_PREFIX="lib"
#----------------------
# Default flags for values for other variables that come from configure.user.
#----------------------
#----------------------
# Set variables to defaults if not already set.
# Note: ${VAR:-defaultvalue} used below appears to be a POSIX syntax.
#----------------------
SANITIZE_FLAGS=${SANITIZE_FLAGS:- -fsanitize=leak,address,undefined}
CFLAGS_DEBUG=${CFLAGS_DEBUG:- -O0 -Wall}
CFLAGS_RELEASE=${CFLAGS_RELEASE:- -O3 -DNDEBUG=1 -ffp-contract=off}
CFLAGS=${CFLAGS:-}
DEPENDFLAGS=${DEPENDFLAGS:- -MMD -MP -MF \[email protected]}
CXXFLAGS=${CXXFLAGS:-}
DEFINES=${DEFINES:-}
PREFER_CLANG=${PREFER_CLANG:-yes}
PREFER_LLD=${PREFER_LLD:-yes}
USE_MS_ABI=${USE_MS_ABI:-no}
WITH_QTENV=${WITH_QTENV:-yes}
WITH_PARSIM=${WITH_PARSIM:-no}
MSGC=${MSGC:-opp_msgc}
NEDTOOL=${NEDTOOL:-opp_nedtool}
LN=${LN:-ln -f}
MKPATH=${MKPATH:-mkdir -p}
SHLIB_POSTPROCESS=${SHLIB_POSTPROCESS:-opp_shlib_postprocess}
JNI_LIB_SUFFIX=${JNI_LIB_SUFFIX:-'$(SHARED_LIB_SUFFIX)'}
# Build shared library by default
SHARED_LIBS=${SHARED_LIBS:-yes}
# No SystemC support by default
WITH_SYSTEMC=${WITH_SYSTEMC:-no}
# No Akaroa support by default
WITH_AKAROA=${WITH_AKAROA:-no}
# Support Python embedding by default
WITH_PYTHON=${WITH_PYTHON:-yes}
LDFLAG_LIBPATH=${LDFLAG_LIBPATH:--L}
LDFLAG_INCLUDE=${LDFLAG_INCLUDE:--Wl,-u,}
LDFLAG_LIB=${LDFLAG_LIB:--l}
LDFLAG_IMPLIB=${LDFLAG_IMPLIB:--Wl,--out-implib,}
LDFLAG_IMPDEF=${LDFLAG_IMPDEF:--Wl,--output-def,}
ARFLAG_OUT=${ARFLAG_OUT:-}
WHOLE_ARCHIVE_ON=
WHOLE_ARCHIVE_OFF=
#----------------------
# Check compiler
#----------------------
if test "$TOOLCHAIN" = "mingw"; then
cc_candidates="i586-mingw32msvc-gcc"
cxx_candidates="i586-mingw32msvc-g++"
else
# icc, icpc: Intel compiler (further ones: Sun Studio: cxx, IBM: xlC)
cc_candidates="icc gcc clang cc xlc"
cxx_candidates="icpc g++ clang++ clang c++ cxx xlC"
if test "$PREFER_CLANG" = "yes"; then
# if we prefer clang over gcc put it at the beginning so it will be detected first
cc_candidates="clang $cc_candidates"
cxx_candidates="clang++ $cxx_candidates"
fi
fi
# the below macros should be present only ONCE in the whole file (otherwise bad things will happen)
AC_PROG_CC($cc_candidates)
AC_PROG_CXX($cxx_candidates)
AC_CHECK_PROG(tmp_CXX, $CXX, $CXX, not found)
if test "$tmp_CXX" = "not found"; then
OPP_PROBLEM_PACKAGES="$OPP_PROBLEM_PACKAGES g++"
AC_MSG_ERROR([No C++ compiler found -- one is required to build OMNeT++/OMNEST, and also for model development.])
fi
#------------------------------------
# check whether compiler supports c++14 mode by default and try to enforce if it does not
#------------------------------------
AC_MSG_CHECKING([for c++14 support])
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#if __cplusplus < 201402L
#error
#endif]])],
[AC_MSG_RESULT(yes)],
[CXXFLAGS="-std=c++14 $CXXFLAGS";
AC_COMPILE_IFELSE(
[AC_LANG_PROGRAM([[
#if __cplusplus < 201402L
#error
#endif]])],
AC_MSG_RESULT(yes (forced by -std=c++14)),
AC_MSG_RESULT(no); AC_MSG_ERROR([Please adjust CXXFLAGS in configure.user to enable C++14 compilation or install a C++14-capable compiler (e.g. clang 3.4+ or gcc 6.1+)]))]
)
if test "$TOOLCHAIN" = "mingw"; then
AS=${AS:-i586-mingw32msvc-as}
AR_CR="${AR:-i586-mingw32msvc-ar} cr"
SHLIB_LD=${SHLIB_LD:-$CXX -shared}
DLLTOOL=${DLLTOOL:-i586-mingw32msvc-dlltool}
STRIP=${STRIP:-i586-mingw32msvc-strip}
RANLIB=${RANLIB:-i586-mingw32msvc-ranlib}
else
if test "$CXX" = "icpc"; then
# disable useless warnings and 'remarks' with the Intel compiler:
#
# warning #654: overloaded virtual function "NEDElement::setAttribute" is only partially overridden
# warning #177: label "yyerrlab1" was declared but never referenced
# remark #869: parameter "node" was never referenced
# remark #981: operands are evaluated in unspecified order
# remark #279: controlling expression is constant (occurs in unfinished cppmsggenerator.cc code)
# remark #1572: floating-point equality and inequality comparisons are unreliable
# remark #424: extra ";" ignored
# remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability..
# remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability..
# remark #810: conversion from "unsigned int" to "char" may lose significant bits
# remark #810: conversion from "long" to "double" may lose significant bits
# remark #1418: external definition with no prior declaration
# remark #1419: external declaration in primary source file
# remark #383: value copied to temporary, reference to temporary used
#
#CFLAGS="$CFLAGS -wd654 -wd177 -wd869 -wd981 -wd279 -wd1572 -wd424 -wd1682 -wd1683 -wd810 -wd1418 -wd1419"
# -w1 disables all remarks
CFLAGS_ARCH="$CFLAGS_ARCH -w1 -wd654 -wd177"
fi
AS=${AS:-${ac_tool_prefix}as}
AR_CR="${AR:-ar} cr"
if test "$PLATFORM" = "macos"; then
SHLIB_LD=${SHLIB_LD:-$CXX -dynamiclib}
else
SHLIB_LD=${SHLIB_LD:-$CXX -shared}
fi
DLLTOOL=${DLLTOOL:-${ac_tool_prefix}dlltool}
STRIP=${STRIP:-${ac_tool_prefix}strip}
AC_PROG_RANLIB
fi
# toolchain name: compiler ($CC) without path
# note: doubling the brackets is needed, otherwise M4 swallows them!
TOOLCHAIN_NAME=`echo $CC | sed 's!^.*/!!g' | sed 's![[ :]]!_!'g`
#-------------------------------
# Figure out the host platform
#-------------------------------
if test "$TOOLCHAIN" = "mingw"; then
# cross compiling for mingw
mingw=yes
PLATFORM=win32.x86
EXE_SUFFIX=".exe"
SHARED_LIB_SUFFIX='$(DLL_LIB_SUFFIX)'
LDFLAGS_ARCH="$LDFLAGS_ARCH -shared-libgcc"
else
case $host in
x86_64-*-mingw*)
mingw=yes
PLATFORM=win32
ARCH=x86_64
EXE_SUFFIX=".exe"
SHARED_LIB_SUFFIX='$(DLL_LIB_SUFFIX)'
# special values for MS ABI compatible build is selected and clang is used
if test "$TOOLCHAIN_NAME" = "clang" -a "$USE_MS_ABI" = "yes"; then
TOOLCHAIN_NAME="clang-msabi"
echo "checking whether we are using MS ABI compatible libraries... yes"
DEFINES="$DEFINES -D_MT -D_WINDOWS -D_WIN32 -DWIN32 -DWIN64 -D_USRDLL -D_WINDLL -D_DLL"
CFLAGS_ARCH="$CFLAGS_ARCH -Wno-deprecated-declarations -isystem /opt/visualc/include"
CXXFLAGS="-fcxx-exceptions"
LDFLAG_LIBPATH="-Wl,-libpath:"
LDFLAG_INCLUDE="-Wl,-include:"
LDFLAG_IMPLIB="-Wl,-implib:"
LDFLAGS_ARCH="$LDFLAGS_ARCH -Wl,-DEBUG -Wl,-libpath:/opt/visualc/lib -Wl,-nodefaultlib:libcmt -lmsvcrt -loldnames -lmsvcprt"
AR_CR="lib -nologo"
ARFLAG_OUT="-out:"
RANLIB="test"
A_LIB_SUFFIX=".lib"
IMPLIB_SUFFIX=".lib"
LIB_PREFIX=""
else # mingw compiler (clang or gcc) with GCC compatible ABI
# on MinGW dll auto importing MUST be used with shared gcc and stdc++
# otherwise exceptions can't be thrown across dll boundaries
LDFLAGS_ARCH="$LDFLAGS_ARCH -L/usr/bin"
# If we are building on windows (native compile) we have to add the /usr/lib and
# /usr/include directories as they are not added by default, but they are needed
# to properly find the LibXML2 libraries.
if test "$cross_compiling" = no ; then
CFLAGS_ARCH="$CFLAGS_ARCH -isystem /opt/mingw64/include"
LDFLAGS_ARCH="$LDFLAGS_ARCH -L/opt/mingw64/lib"
fi
# NOTE: if we are cross-compiling we may need to add the lib and include path
# to the cross-compiled Xml libs here. They should NOT reside in the default
# /usr/lib directory as that would interfere with the native build.
fi
;;
x86_64-*-linux*)
PLATFORM=linux
ARCH=x86_64
;;
aarch64-*-linux*)
PLATFORM=linux
ARCH=aarch64
;;
x86_64-*-darwin*)
PLATFORM=macos
ARCH=x86_64
OMNETPP_TOOLS_DIR=$OMNETPP_ROOT_DIR/tools/$PLATFORM.$ARCH
CFLAGS_ARCH="$CFLAGS_ARCH -isystem \$(OMNETPP_TOOLS_DIR)/include"
CFLAGS_TOOLS_MACOSX="-isystem $OMNETPP_TOOLS_DIR/include"
LDFLAGS_ARCH="$LDFLAGS_ARCH -L/usr/lib -L\$(OMNETPP_TOOLS_DIR)/lib -F\$(OMNETPP_TOOLS_DIR)/lib"
LDFLAGS_TOOLS_MACOSX="-L$OMNETPP_TOOLS_DIR/lib -F$OMNETPP_TOOLS_DIR/lib"
SO_LIB_SUFFIX=".dylib"
JNI_LIB_SUFFIX=".jnilib"
;;
arm-*-darwin*)
PLATFORM=macos
ARCH=aarch64
OMNETPP_TOOLS_DIR=$OMNETPP_ROOT_DIR/tools/$PLATFORM.$ARCH
CFLAGS_ARCH="$CFLAGS_ARCH -isystem \$(OMNETPP_TOOLS_DIR)/include"
CFLAGS_TOOLS_MACOSX="-isystem $OMNETPP_TOOLS_DIR/include"
LDFLAGS_ARCH="$LDFLAGS_ARCH -L/usr/lib -L\$(OMNETPP_TOOLS_DIR)/lib -F\$(OMNETPP_TOOLS_DIR)/lib"
LDFLAGS_TOOLS_MACOSX="-L$OMNETPP_TOOLS_DIR/lib -F$OMNETPP_TOOLS_DIR/lib"
SO_LIB_SUFFIX=".dylib"
JNI_LIB_SUFFIX=".jnilib"
;;
*)
;;
esac
fi
#----------------------
# Check whether LLD linker is available and preferred as it is a much faster than the system one.
#----------------------
if test "$PREFER_LLD" = "yes"; then
AC_MSG_CHECKING(whether LLD linker is available)
LDFLAGS_SAVE="$LDFLAGS"
LDFLAGS="$LDFLAGS -fuse-ld=lld"
AC_LINK_IFELSE(
[AC_LANG_PROGRAM()],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no); LDFLAGS="$LDFLAGS_SAVE"])
fi
# test if we are running on mingw using gcc as we have to force the use of shared libgcc
if test "$mingw" = yes -a "$CC" = "gcc"; then
LDFLAGS_ARCH="$LDFLAGS_ARCH -shared-libgcc"
fi
#----------------------
# check if clang is used as we want to avoid warnings from generated code
#----------------------
if test "$CC" = "clang"; then
CFLAGS_ARCH="$CFLAGS_ARCH -Wno-deprecated-register -Wno-unused-function"
fi
#----------------------
# check and disable frame pointer omission for better debugging support
#----------------------
AC_PROG_CXX_OPTION(-fno-omit-frame-pointer, CFLAGS_ARCH="$CFLAGS_ARCH -fno-omit-frame-pointer")
#----------------------
# check for debugger specific debug info generation for better debugging support
#----------------------
AC_PROG_CXX_OPTION(-glldb, CFLAGS_DEBUG="$CFLAGS_DEBUG -glldb",
AC_PROG_CXX_OPTION(-ggdb3, CFLAGS_DEBUG="$CFLAGS_DEBUG -ggdb3", CFLAGS_DEBUG="$CFLAGS_DEBUG -g")
)
# if supported, generate debug info for standallone debugging (i.e. typeinfo for std:: classes)
AC_PROG_CXX_OPTION(-fstandalone-debug, CFLAGS_DEBUG="$CFLAGS_DEBUG -fstandalone-debug",
AC_PROG_CXX_OPTION(-fno-limit-debug-info, CFLAGS_DEBUG="$CFLAGS_DEBUG -fno-limit-debug-info")
)
#----------------------
# check for support of --no-as-needed linker option. GCC 4.6 has changed not to link with a shared lib
# if the program does not reference a symbol from the lib. The MS linker does not support this, but accept it
# so we exclude it from testing.
#----------------------
if test "$TOOLCHAIN_NAME" != "clang-msabi"; then
AS_NEEDED_OFF=-Wl,--no-as-needed
AC_PROG_CXX_OPTION($AS_NEEDED_OFF, ,AS_NEEDED_OFF="")
AS_NEEDED_ON=-Wl,--as-needed
AC_PROG_CXX_OPTION($AS_NEEDED_ON, ,AS_NEEDED_ON="")
fi
#----------------------
# check if swapcontext() call is available (used for coroutines)
# NOTE: we should explicitly exclude MAC OS because AC_CHECK_FUNC reports that swapcontext()
# is present, but it is uninmplemented (and deprecated) on OS X 10.6 and later. We use the
# original 'portable' implementation on MAC.
#----------------------
if test "$PLATFORM" != "macos"; then
AC_CHECK_FUNCS(swapcontext, [HAVE_SWAPCONTEXT="1"])
fi
#----------------------
# Test if "-fPIC" is needed for shared libs (there's a performance penalty if we use it unnecessarily)
#----------------------
# To test, we try to compile the following code into a shared library:
# int x;
# int getX() {return x;}
#
AC_MSG_CHECKING(if shared libs need -fPIC)
echo 'int x;' >conftest.cc
echo 'int getX() {return x;}' >>conftest.cc
fpic="x"
if echo $CFLAGS | grep -i -- "-fPIC" >/dev/null 2>/dev/null; then
AC_MSG_RESULT([skip (already in CFLAGS)])
fpic=""
PIC_FLAGS=-fPIC
fi
if test "$fpic" = "x" && \
$CXX $CFLAGS -c conftest.cc >/dev/null 2>/dev/null && \
$SHLIB_LD $LDFLAGS -o conftest.so conftest.o >/dev/null 2>/dev/null; \
then
AC_MSG_RESULT(no)
fpic=""
fi
if test "$fpic" = "x" && \
$CXX $CFLAGS -fPIC -c conftest.cc >/dev/null 2>/dev/null && \
$SHLIB_LD $LDFLAGS -fPIC -o conftest.so conftest.o >/dev/null 2>/dev/null; \
then
AC_MSG_RESULT(yes)
fpic="-fPIC"
fi
if test "$fpic" = "x" && \
$CXX $CFLAGS -fpic -c conftest.cc >/dev/null 2>/dev/null && \
$SHLIB_LD $LDFLAGS -fpic -o conftest.so conftest.o >/dev/null 2>/dev/null; \
then
AC_MSG_RESULT(-fpic)
fpic="-fpic"
fi
if test "$fpic" = "x"; then
AC_MSG_RESULT(failure)
AC_MSG_WARN([COULD NOT FIGURE OUT HOW TO BUILD SHARED LIBRARY -- reverting to static libs])
SHARED_LIBS="no"
else
CFLAGS="$CFLAGS $fpic"
SHLIB_LD="$SHLIB_LD $fpic"
PIC_FLAGS="$fpic"
fi
rm -f conftest.*
#----------------------
# Test if --export-dynamic or -E linker option is accepted and/or needed
#----------------------
# We want to be able to dynamically load extensions into simulation executables,
# so we need to ensure that all symbols in the executable are visible to
# dynamically loaded libraries. However, not all linkers need or support
# --export-dynamic.
# Strategy: we'll compile the following program into a shared library:
# void function_from_main();
# void some_func() {func_from_main();}
# Then we *independently* compile with the following program:
# #include <dlfcn.h>
# void func_from_main() {}
# int main() {return dlopen("libconftest_a.so",RTLD_NOW)==0;}
# And we expect to be able to run the program successfully.
#
# first check if we need "-ldl" for dlopen() [Laura Marie Feeney suggests it's not needed for FreeBSD]
OPP_CHECK_LIB(dlopen, dlfcn.h, dlopen("",0), , , ldl_not_needed, ldl="", ldl="-ldl")
# then go ahead
AC_MSG_CHECKING(if --export-dynamic linker option is supported/needed)
echo 'void func_from_main();' >conftest_a.cc
echo 'void some_func() {func_from_main();}' >>conftest_a.cc
echo '#include <dlfcn.h>' >conftest_m.cc
echo '#include <stdio.h>' >>conftest_m.cc
echo 'void func_from_main() {}' >>conftest_m.cc
echo 'int main() {if (dlopen("./libconftest_a.so",RTLD_NOW)!=0) return 0; printf("%s",dlerror()); return 1;}' >>conftest_m.cc
if $CXX -c conftest_a.cc >/dev/null 2>/dev/null && \
$CXX -c conftest_m.cc >/dev/null 2>/dev/null && \
$SHLIB_LD -o libconftest_a.so conftest_a.o >/dev/null 2>/dev/null; \
then
silly_ok="no"
# 1st try.
if $CXX -o conftest conftest_m.o $ldl >/dev/null 2>/dev/null; then
if ./conftest >/dev/null 2>/dev/null; then
AC_MSG_RESULT(not needed)
silly_ok="yes"
fi
fi
# 2nd try.
if test $silly_ok = "no" && \
$CXX -o conftest -Wl,--export-dynamic conftest_m.o $ldl >/dev/null 2>/dev/null; \
then
if ./conftest >/dev/null 2>/dev/null; then
AC_MSG_RESULT(both)
LDFLAGS_ARCH="$LDFLAGS_ARCH -Wl,--export-dynamic"
silly_ok="yes"
fi
fi
# no solution found
if test $silly_ok = "no"; then
AC_MSG_RESULT(no solution found)
AC_MSG_WARN([No way was detected to export symbols from executables to shared])
AC_MSG_WARN([libraries. You probably will not be able to dynamically load])
AC_MSG_WARN([simple modules or other extensions written in C++ into simulation])
AC_MSG_WARN([programs like INET.])
fi
else
# note: expected failure on MinGW, because there's no dlopen().
# fixing this would mean overturning and re-testing the whole configure script
AC_MSG_RESULT(test failed)
fi
rm -f conftest_a.* conftest_m.* libconftest_a.so conftest
#----------------------
# Test for "-z allextract" (Sun) or "--whole-archive" (GNU) linker option,
#----------------------
# Goal: to eliminate "silly linker problem", that is, to convince the linker
# to include constructors of static C++ objects in statically linked libraries.
# To test, we'll compile the following code into a static library:
# #include <stdio.h>
# class A { public: A() {printf("=WORKS=");} };
# static A a;
# Then we link it with the following program:
# int main() {return 0;}
# And check if the executable prints '=WORKS=' when run.
#
AC_MSG_CHECKING(for flags needed to link with static libs containing simple modules)
echo '#include <stdio.h>' >conftest_a.cc
# NOTE: do not write "=WORKS=\n" because sh on OS X resolves it
echo 'class A { public: A() {printf("=WORKS=");} };' >>conftest_a.cc
echo 'static A a;' >> conftest_a.cc
echo 'int main() {return 0;}' >> conftest_m.cc
if $CXX -c conftest_a.cc >/dev/null 2>/dev/null && \
$CXX -c conftest_m.cc >/dev/null 2>/dev/null && \
$AR_CR libconftest_a.a conftest_a.o >/dev/null 2>/dev/null && \
$RANLIB libconftest_a.a >/dev/null 2>/dev/null; \
then
silly_ok="no"
# 1st try.
if $CXX -o conftest conftest_m.o libconftest_a.a >/dev/null 2>/dev/null; then
if ./conftest 2>/dev/null | grep '=WORKS=' >/dev/null; then
AC_MSG_RESULT(none)
silly_ok="yes"
fi
fi
# 2nd try.
silly1=-Wl,--whole-archive
silly2=-Wl,--no-whole-archive
if test $silly_ok = "no" && \
$CXX -o conftest conftest_m.o $silly1 libconftest_a.a $silly2 >/dev/null 2>/dev/null && \
./conftest 2>/dev/null | grep '=WORKS=' >/dev/null; \
then
AC_MSG_RESULT(--whole-archive)
AC_MSG_NOTICE([NOTE: Use the following syntax when linking with static libraries])
AC_MSG_NOTICE([containing simple modules and other dynamically registered components:])
AC_MSG_NOTICE([ $CXX ... $silly1 <libs> $silly2 ...])
silly_ok="yes"
WHOLE_ARCHIVE_ON=$silly1
WHOLE_ARCHIVE_OFF=$silly2
fi
# 3rd try.
silly1=-Wl,-z,allextract
silly2=-Wl,-z,defaultextract
if test $silly_ok = "no" && \
$CXX -o conftest conftest_m.o $silly1 libconftest_a.a $silly2 >/dev/null 2>/dev/null && \
./conftest 2>/dev/null | grep '=WORKS=' >/dev/null; \
then
AC_MSG_RESULT([-z,allextract])
AC_MSG_NOTICE([NOTE: Use the following syntax when linking with static libraries])
AC_MSG_NOTICE([containing simple modules and other dynamically registered components:])
AC_MSG_NOTICE([ $CXX ... $silly1 <libs> $silly2 ...])
silly_ok="yes"
WHOLE_ARCHIVE_ON=$silly1
WHOLE_ARCHIVE_OFF=$silly2
fi
# 4th try.
silly1=-Wl,-all_load
silly2=
if test $silly_ok = "no" && \
$CXX -o conftest conftest_m.o $silly1 libconftest_a.a $silly2 >/dev/null 2>/dev/null && \
./conftest 2>/dev/null | grep '=WORKS=' >/dev/null; \
then
AC_MSG_RESULT([-all_load])
AC_MSG_NOTICE([NOTE: Use the following syntax when linking with static libraries])
AC_MSG_NOTICE([containing simple modules and other dynamically registered components:])
AC_MSG_NOTICE([ $CXX ... $silly1 <libs> $silly2 ...])
silly_ok="yes"
WHOLE_ARCHIVE_ON=$silly1
WHOLE_ARCHIVE_OFF=$silly2
fi
# no solution found
if test $silly_ok = "no"; then
AC_MSG_RESULT(no solution found)
AC_MSG_WARN([Avoid linking with static libraries containing simple modules])
AC_MSG_WARN([and other dynamically registered components. Those components])
AC_MSG_WARN([will not be found by the simulation program, because the linker])
AC_MSG_WARN([leaves them out from the executable.])
fi
else
AC_MSG_RESULT(test failed)
fi
rm -f conftest_a.* conftest_m.* libconftest_a.a conftest
#----------------------
# Check for rpath
#----------------------
# add RUNTIME_PATH option if supported, so that setting LD_LIBRARY_PATH is no longer needed when using shared libs.
# Also, we add "." to rpath so that opp_run -L option does not need full path of the library
AC_MSG_CHECKING(whether linker supports -rpath)
LDFLAGS_SAVE="$LDFLAGS"
LDFLAGS="$LDFLAGS -Wl,-rpath,\$(OMNETPP_LIB_DIR) -Wl,-rpath,\$(OMNETPP_TOOLS_DIR)/lib -Wl,-rpath,."
AC_LINK_IFELSE(
[AC_LANG_PROGRAM()],
[AC_MSG_RESULT(yes)],
[AC_MSG_RESULT(no); RPATH_UNSUPPORTED="true"; LDFLAGS="$LDFLAGS_SAVE"])
#----------------------
# Checks for programs.
#----------------------
AC_PROG_YACC
if test "$YACC" = "yacc"; then
AC_MSG_ERROR([Bison not found, needed to build OMNeT++/OMNEST -- please install it!])
fi
BISON_VER_LINE=`$YACC --version | grep "bison.* [[34]]\\."`
if test -z "$BISON_VER_LINE"; then
AC_MSG_ERROR([At least bison version 3.0 required -- type '$YACC --version' to see the version number])
fi
# disable some bison warnings
YACC="$YACC -Wno-yacc"
AC_PROG_LEX(noyywrap)
if test "$LEX" != "flex"; then
AC_MSG_ERROR([Flex not found, needed to build OMNeT++/OMNEST -- please install it!])
fi
FLEX_VER_LINE=`$LEX --version | grep "flex.* 2\\.[[5-9]]"`
if test -z "$FLEX_VER_LINE"; then
AC_MSG_ERROR([At least flex version 2.5 required -- type '$LEX --version' to see the version number])
fi
# make must be GNU make
AC_CHECK_PROG(MAKE, make , make, not found)
if test "$MAKE" = "not found"; then
OPP_PROBLEM_PACKAGES="$OPP_PROBLEM_PACKAGES make"
AC_MSG_ERROR(make program not found -- it is required to build OMNeT++/OMNEST, and also for model development.)
else
if "$MAKE" --version 2>/dev/null | grep -i GNU >/dev/null; then :; else
AC_MSG_ERROR(GNU Make is required to build OMNeT++/OMNEST.)
fi
fi
# perl is needed for opp_makemake and some other scripts
AC_ARG_VAR(PERL, The Perl interpreter)
AC_CHECK_PROG(PERL, perl, perl, not found)
if test "$PERL" = "not found"; then
OPP_PROBLEM_PACKAGES="$OPP_PROBLEM_PACKAGES perl"
AC_MSG_ERROR(Perl not found -- please install it! Perl is required by opp_makemake and some other programs.)
fi
# swig is used for building the ui support libs
AC_ARG_VAR(SWIG, The Swig interface generator)
AC_CHECK_PROG(SWIG, swig, swig, not found)
#---------------------------
# Check for python3 and its modules
#---------------------------
# Python 3 is used for many command line tools, and in the IDE for result analysis
AC_ARG_VAR(PYTHON3, The Python 3 interpreter)
AC_CHECK_PROG(PYTHON3, python3, python3, not found)
if test "$PYTHON3" = "not found"; then
AC_MSG_ERROR(Python (python3) not found -- please install it! Python is required by many command-line tools and by the Analysis Tool in the IDE.)
fi
AC_MSG_CHECKING(if all necessary Python modules are available)
PYTHON_PACKAGE_CHECK_CODE=$(cat <<-EOT
# These should always be available by default, but just as a sanity check:
import argparse, pickle, math, io, sys, os, platform, mmap, pprint, json, \
re, itertools, importlib, inspect, glob, functools, csv, string, \
struct, socket, subprocess, time, traceback, threading, types, copy, \
tempfile, select, shlex, unittest, weakref, logging, multiprocessing, xml
failed = list()
def try_import(name):
global failed
try:
importlib.import_module(name)
except:
failed.append(name)
try_import("difflib") # for opp_test and scave python tester
# for the Analysis Tool:
try_import("omnetpp")
try_import("numpy")
try_import("scipy")
try_import("pandas")
try_import("matplotlib")
if os.name == 'posix':
try_import("posix_ipc")
try_import("fcntl")
else:
try_import("msvcrt")
if failed:
print(" ".join(failed))
exit(1)
# The utils module checks the versions of some Python packages when imported
from omnetpp.scave import utils
EOT
)
if output=$(python3 -c "$PYTHON_PACKAGE_CHECK_CODE") ; then
AC_MSG_RESULT(yes)
else
AC_MSG_RESULT(no)
if test -d ide; then
AC_MSG_ERROR([Some Python modules required by the IDE were not found: $output])
else
OPP_PROBLEM_PACKAGES="$OPP_PROBLEM_PACKAGES Python modules ($output)"
AC_MSG_WARN([Some Python modules required by the IDE were not found: $output])
fi
fi
# The following ones are optional, and are used only by some sample ANF scripts:
# import pylab
# import prettyplotlib
# import seaborn
#-------------------------------------------
# Check for python embedding cflags and libs
#-------------------------------------------
if test "$WITH_PYTHON" = "yes"; then
PYTHON_CFLAGS=$(pkg-config --cflags python3-embed)
PYTHON_LIBS=$(pkg-config --libs python3-embed)
OPP_CHECK_LIB(python3-dev, Python.h, Py_Initialize(), $PYTHON_CFLAGS, $PYTHON_LIBS, python3_found)
if test $python3_found = no; then
AC_MSG_ERROR([Python embeding was configured (WITH_PYTHON=yes), but the 'python3-dev' package was not found.])
fi
fi
#----------------------
# Checks for standard libraries.
#----------------------
SYS_LIBS=""
if test "$TOOLCHAIN_NAME" != "clang-msabi"; then
# math functions
OPP_CHECK_LIB(math, math.h, floor(0), $CFLAGS, , math_ok)
if test $math_ok = no; then
OPP_CHECK_LIB(math, math.h, floor(0), $CFLAGS, -lm, math_ok, SYS_LIBS="-lm $SYS_LIBS")
fi
if test $math_ok = no; then
AC_MSG_ERROR([Standard C math library -lm not found])
fi
# Check for standard C++ library
OPP_CHECK_LIB(standard C++ lib, iostream, /**/, $CFLAGS, -lstdc++, stdcpp_ok, SYS_LIBS="-lstdc++ $SYS_LIBS")
# standard C++ library for clang on Mac
if test $stdcpp_ok = no; then
OPP_CHECK_LIB(standard C++ lib, iostream, /**/, $CFLAGS, -lc++, stdcpp_ok, SYS_LIBS="-lc++ $SYS_LIBS")
fi
# standard C++ library for the intel compiler
if test $stdcpp_ok = no; then
OPP_CHECK_LIB(standard C++ lib, iostream, /**/, $CFLAGS, -lcxa, stdcpp_ok, SYS_LIBS="-lcxa $SYS_LIBS")
fi
if test $stdcpp_ok = no; then
AC_MSG_ERROR([Standard C++ library -lstdc++_s or -lstdc++ or -lcxx or -lcxa or -lc++ not found])
fi
fi # end clang-msabi
# dlopen()
OPP_CHECK_LIB(dlopen, dlfcn.h, dlopen("",0), $CFLAGS, , dl_ok)
if test $dl_ok = no; then
OPP_CHECK_LIB(dlopen, dlfcn.h, dlopen("",0), $CFLAGS, -ldl, dl_ok, SYS_LIBS="-ldl $SYS_LIBS")
fi
if test $dl_ok = yes; then
HAVE_DLOPEN=1
else
HAVE_DLOPEN=0
AC_MSG_WARN([no dlopen(): dynamic loading of libs not possible])
fi
#-----------------------------
# Check for Qt cflags and libs
#-----------------------------
if test "$WITH_QTENV" = "yes"; then
if test "$QMAKE" = ""; then
# Check for qmake variants on path if the user did not specify the QMAKE variable to use its own Qt installation.
# first try qt5 specific variants to force qt5 in case either qt4 or qt6 is installed on the user's system
AC_PATH_PROGS(QMAKE, qmake-qt5 qmake5 qmake, nope)
elif test ! -x "$QMAKE"; then
AC_MSG_ERROR([Qtenv cannot find qmake specified in the QMAKE variable (or it is not executable) -- $QMAKE])
fi
if test "$QMAKE" = nope; then
AC_MSG_ERROR([Qtenv cannot find qmake -- maybe it is not in the PATH or has some exotic name (tested names were: qmake-qt5 qmake5 qmake) - You can disable Qtenv by setting the WITH_QTENV variable to "no" in configure.user, or try setting the QMAKE variable to point your Qt installation's qmake file.])
else
QT_INSTALL_BINS=$(cd $($QMAKE -query QT_INSTALL_BINS) ; pwd) # this cd/pwd trick is required to return valid unix sytle path even on mingw
QT_INSTALL_HEADERS=$(cd $($QMAKE -query QT_INSTALL_HEADERS) ; pwd)
QT_INSTALL_LIBS=$(cd $($QMAKE -query QT_INSTALL_LIBS) ; pwd)
AC_PATH_PROGS(MOC, moc-qt5 moc5 moc, nope, path = $QT_INSTALL_BINS$PATH_SEPARATOR$QT_INSTALL_LIBS)
AC_PATH_PROGS(UIC, uic-qt5 uic5 uic, nope, path = $QT_INSTALL_BINS$PATH_SEPARATOR$QT_INSTALL_LIBS)
AC_PATH_PROGS(RCC, rcc-qt5 rcc5 rcc, nope, path = $QT_INSTALL_BINS$PATH_SEPARATOR$QT_INSTALL_LIBS)
if [test "$MOC" = nope] || [test "$UIC" = nope] || [test "$RCC" = nope] ; then
AC_MSG_ERROR([Could not find all of moc, rcc, and uic for Qt5 -- $MOC, $RCC, $UIC])
fi
QT_CFLAGS=${QT_CFLAGS:-"-isystem $QT_INSTALL_HEADERS"}
QT_LIBS=${QT_LIBS:-"-lQt5Gui -lQt5Core -lQt5Widgets -lQt5PrintSupport -lQt5OpenGL $LDFLAG_LIBPATH$QT_INSTALL_LIBS"}
if test -z "$RPATH_UNSUPPORTED"; then
QTENV_LDFLAGS="-Wl,-rpath=$QT_INSTALL_LIBS"
fi
QT_VERSIONCHECK_CODE=$(cat <<-EOT
qVersion();
#if QT_VERSION < QT_VERSION_CHECK(5,9,0) || QT_VERSION >= QT_VERSION_CHECK(6,0,0)
#error
#endif
EOT
)
OPP_CHECK_LIB(Qt5, QtCore/QtGlobal, $QT_VERSIONCHECK_CODE, $CXXFLAGS $CFLAGS $QT_CFLAGS, $QT_LIBS, qt_ok)
# Test on Windows/MinGW toolchain
if test $qt_ok = no; then
QT_LIBS="-lQtGui5 -lQtCore5 -lQtWidgets5 -lQtPrintSupport5 -lQtOpenGL5"
QTENV_LDFLAGS=""
OPP_CHECK_LIB(Qt5, QtCore/QtGlobal, $QT_VERSIONCHECK_CODE, $CXXFLAGS $CFLAGS $QT_CFLAGS, $QT_LIBS, qt_ok)
fi
# Test on Mac OS X using the local Qt framework
if test $qt_ok = no; then
QT_LIBS="-framework QtGui -framework QtCore -framework QtWidgets -framework QtPrintSupport -framework QtOpenGL -F $QT_INSTALL_LIBS"
QTENV_LDFLAGS=""
OPP_CHECK_LIB(Qt5, QtCore/QtGlobal, $QT_VERSIONCHECK_CODE, $CXXFLAGS $CFLAGS $QT_CFLAGS, $QT_LIBS $LDFLAGS_TOOLS_MACOSX, qt_ok)
fi
if test $qt_ok = no; then
AC_MSG_ERROR([Cannot build Qt apps, probably due to missing or too old Qt 5 packages. Make sure Qt 5 development packages are installed and is version Qt 5.9 or newer. You can disable Qtenv by setting the WITH_QTENV variable to "no" in configure.user, or try setting the QMAKE variable to point your Qt installation's qmake file.])
fi
fi
fi # WITH_QTENV
#-----------------------------
# Detecting OpenSceneGraph (libopenscenegraph-dev)
# and osgEarth (openscenegraph-plugin-osgearth and libosgearth-dev)
#-----------------------------
OSG_VERSIONCHECK_CODE=$(cat <<-EOT
#if OSG_VERSION_LESS_THAN(3, 2, 0)
#error Requires OpenSceneGraph 3.2 or later
#else
osgGetVersion();
#endif
EOT
)
OSGEARTH_VERSIONCHECK_CODE=$(cat <<-EOT
#if OSGEARTH_VERSION_LESS_THAN(2, 7, 0)
#error Requires osgEarth 2.7 or later
#else
osgEarthGetVersion();
#endif
EOT
)
if test "$WITH_OSG" = "yes"; then
OSG_LIBS=${OSG_LIBS:-"-losg -losgDB -losgGA -losgViewer -losgUtil -lOpenThreads"}
OPP_CHECK_LIB(OpenSceneGraph, osg/Version, $OSG_VERSIONCHECK_CODE, $CFLAGS $CFLAGS_ARCH $OSG_CFLAGS $CFLAGS_TOOLS_MACOSX, $LDFLAGS_ARCH $LDFLAGS_TOOLS_MACOSX $OSG_LIBS, osg_ok)
if test $osg_ok = no; then
AC_MSG_ERROR([Cannot find OpenSceneGraph 3.2 or later - 3D view in Qtenv will not be available. Set WITH_OSG=no in configure.user to disable this feature or install the development package for OpenSceneGraph.])
else
# detect osgEarth, too
if test "$WITH_OSGEARTH" = "yes"; then
OSGEARTH_LIBS=${OSGEARTH_LIBS:-"-losgEarth -losgEarthUtil"}
OPP_CHECK_LIB(osgEarth, osgEarth/Version, $OSGEARTH_VERSIONCHECK_CODE, $CFLAGS $CFLAGS_ARCH $OSGEARTH_CFLAGS $CFLAGS_TOOLS_MACOSX, $LDFLAGS_ARCH $LDFLAGS_TOOLS_MACOSX $OSGEARTH_LIBS, osgearth_ok)
if test $osgearth_ok = no; then
AC_MSG_ERROR([Cannot find osgEarth 2.7 or later. Set WITH_OSGEARTH=no in configure.user to disable this feature or install an up to date version of osgEarth.])
fi
fi # WITH_OSGEARTH
fi
fi # WITH_OSG
#----------------------
# Check for optional OpenMP compiler/linker flag.
#----------------------
AC_OPENMP()
#----------------------
# Check for MPI.
#----------------------
if test "$WITH_PARSIM" = "yes"; then
if test -n "$MPI_LIBS"; then
OPP_CHECK_LIB(MPI, mpi.h, MPI_Init(0,0), $CFLAGS $MPI_CFLAGS, $LDFLAGS $MPI_LIBS, mpi_ok)
else
mpi_ok=no
# LAM and OpenMPI support mpic++ -showme
# NOTE: on some systems (e.g. RHEL and Fedora), "module load openmpi_i386" or similar command may be additionally needed to make MPI accessible
AC_CHECK_PROG(MPICPP, mpic++, mpic++, not found)
if test "$MPICPP" != "not found"; then
MPI_CFLAGS=$(mpic++ -showme:compile)
MPI_LIBS=$(mpic++ -showme:link)
# see bug: https://bugs.launchpad.net/ubuntu/+source/openmpi/+bug/1941786
MPI_LIBS="$MPI_LIBS -lopen-pal"