Dear list,
for the archive I want to note some more important details when linking
mingw-w64 against msvcr90.
Reminder: I patched the MinGW-w64 installation of openSuse (GCC 4.7.2) to
generate a libmoldname90.a and then set new GCC specs that link against
moldname90 and msvcr90 instead of moldname and msvcrt according to
http://sourceforge.net/mailarchive/message.php?msg_id=30556805 .
I strongly discourage to link against libgcc and libstdc++ statically.
If you do link statically against any of these, you may get a dysfunctional
exception handling in your own C++ code. In my case, any thrown exception was
leading to an abnormal program termination because any try catch(…) block was
ignored.
Best regards
Sebastian
On Mar 4, 2013, at 4:42 PM, Sebastian Wolff wrote:
> Hello Kai,
>
>
>> The file can be generated via '<prefix>-dlltool moldname-msvcrt.def -U
>> --dllname msvcr90.dll'
>
> Wonderful !!!!!!! That did the trick.
> I did not manage to use this command directly ( it did not do anything on my
> machine), but I finally was able to build liboldname90 and the application
> works fine. Thank you very much for your help!
>
> Although little off-topic, one questions remains to me: Is it allowed to
> distribute proprietary software which links against libgcc statically?
>
>
> For the archive, I want to illustrate the steps that I did in detail:
>
>
> Using MingW-w64 for linking against libs compiled with VS2008/VC++9.0
>
> Modify the GCC specs file
> Modify the Makefiles of MingW-w64-CRT
> Recompile the Mingw-w64 CRT
> Compile the application with the new specs
> Put a manifest next to the executable
>
> Modify the specs file
>
> This is done with the following shell script. It dumps the specs and appends
> some code which makes the specs more flexible. The modified specs still link
> against msvcrt.dll. Then another specs file is created which re-defines some
> variables in order to link against msvcr90.dll. The idea is: The standard
> call of MingW-w64 will use the built-in specs while one must specify if one
> wants to link against another runtime.
>
> CC="${M_ROOT}/cross/bin/${MINGW_TRIPLE}-gcc"
> $CC -dumpspecs > $M_ROOT/specs_dumped
>
> echo "%rename cpp msvcrXX_cpp:" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "%rename cc1plus msvcrXX_cc1plus:" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
>
> echo "*local_prefix:" >> $M_ROOT/specs_dumped
> echo "$M_CROSS/" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*local_includes:" >> $M_ROOT/specs_dumped
> echo "-I%(local_prefix)include -I$M_CROSS/include" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*local_lib_search:" >> $M_ROOT/specs_dumped
> echo "-L%(local_prefix)lib -L$M_CROSS/lib -L$M_CROSS/lib64" >>
> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "%rename link_libgcc link_libgcc_XX:" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*link_libgcc:" >> $M_ROOT/specs_dumped
> echo "%(link_libgcc_XX) %(local_lib_search)" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
>
> echo "*cpp:" >> $M_ROOT/specs_dumped
> echo "%(msvcrXX_cpp) %(msvcrt_version) %(local_includes)" >>
> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*cc1plus:" >> $M_ROOT/specs_dumped
> echo "%(msvcrXX_cc1plus) %(msvcrt_version) %(local_includes)" >>
> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
>
>
> sed -i -e 's/-lmsvcrt/-l\%\(msvcrt\)/g' $M_ROOT/specs_dumped
> sed -i -e 's/-lmoldname/\%\(moldname\)/g' $M_ROOT/specs_dumped
>
> echo "*msvcrt:" >> $M_ROOT/specs_dumped
> echo "msvcrt" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*msvcrt_version:" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
> echo "*moldname:" >> $M_ROOT/specs_dumped
> echo "-lmoldname" >> $M_ROOT/specs_dumped
> echo "" >> $M_ROOT/specs_dumped
>
> rm -f $M_ROOT/specs_msvcr90
> echo "*msvcrt:" >> $M_ROOT/specs_msvcr90
> echo "msvcr90" >> $M_ROOT/specs_msvcr90
> echo "" >> $M_ROOT/specs_msvcr90
> echo "*msvcrt_version:" >> $M_ROOT/specs_msvcr90
> echo "-D__MSVCRT_VERSION__=0x0900" >> $M_ROOT/specs_msvcr90
> echo "" >> $M_ROOT/specs_msvcr90
> echo "*moldname:" >> $M_ROOT/specs_msvcr90
> echo "-lmoldname90" >> $M_ROOT/specs_msvcr90
> echo "" >> $M_ROOT/specs_msvcr90
>
> cp $M_ROOT/specs_dumped
> $M_CROSS/lib/gcc/x86_64-w64-mingw32/$GCC_VERSION/specs
> cp $M_ROOT/specs_msvcr90
> $M_CROSS/lib/gcc/x86_64-w64-mingw32/$GCC_VERSION/specs_msvcr90
>
> SPECFILE="specs_msvcr90"
> export CFLAGS_FOR_TARGET="-specs $SPECFILE $CFLAGS"
> export CXXFLAGS_FOR_TARGET="-specs $SPECFILE $CXXFLAGS"
> export LFLAGS_FOR_TARGET="-specs $SPECFILE $LFLAGS"
> The last lines prepare some exports for recompiling the Mingw-w64-CRT
>
>
> Modify the makefiles of MingW-w64-CRT
>
> Change into the directory of the sources of the Mingw-w64 runtime, eg.
> sources/mingw-w64/mingw-w64-crt .
> Add the following lines to the file Makefile.am:
>
> lib32_LIBRARIES += lib32/libmoldname90.a
> lib32_libmoldname90_a_CPPFLAGS=$(CPPFLAGS32) $(extra_include) $(AM_CPPFLAGS)
> lib32_libmoldname90_a_SOURCES = $(src_libmoldname)
> lib32_libmoldname90_a_AR = $(DTDEF32) $(top_srcdir)/lib32/moldname-msvcrt.def
> -U --dllname msvcr90.dll && $(AR) $(ARFLAGS)
>
> lib64_LIBRARIES += lib64/libmoldname90.a
> lib64_libmoldname90_a_CPPFLAGS=$(CPPFLAGS64) $(extra_include) $(AM_CPPFLAGS)
> lib64_libmoldname90_a_SOURCES = $(src_libmoldname)
> lib64_libmoldname90_a_AR = $(DTDEF64) $(top_srcdir)/lib64/moldname-msvcrt.def
> -U --dllname msvcr90.dll && $(AR) $(ARFLAGS)
>
> Then rebuild the configure script with autotools (still from the CRT source
> directory)
> aclocal
> automake
> autoconf
> Then rebuild the runtime (call configure with specific options and make &&
> make install).
>
>
> Compile the application with the new specs
>
> I used the following command to compile a single ANSI C source file and link
> it against some libs:
> MINGW_TRIPLE="x86_64-w64-mingw32"
> CC="$HOME_PATH/cross/bin/${MINGW_TRIPLE}-gcc"
> $CC -Wl,-v -v -specs specs_msvcr90 -DMINGW_HAS_SECURE_API=1 \
> -O2 -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 \
> --param=ssp-buffer-size=4 -mms-bitfields -fno-keep-inline-dllexport \
> -O2 -mthreads -Wall -frtti $SOURCES $LIBDIR $INCDIR $MYLIB \
> --static-libgcc -static-libstdc++ -static -o myapp.exe
> (I used GCC 4.7.2 on Fedora with Mingw-w64 from SVN trunk. )
>
>
> Put a manifest file next to the executable (on Vista and later)
>
> Create the file myapp.exe.manifest with the following contents:
>
> for 64 Bit:
>
> <?xml version='1.0' encoding='UTF-8' standalone='yes'?>
> <assembly xmlns='urn:schemas-microsoft-com:asm.v1' manifestVersion='1.0'>
> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
> <security>
> <requestedPrivileges>
> <requestedExecutionLevel level='asInvoker' uiAccess='false' />
> </requestedPrivileges>
> </security>
> </trustInfo>
> <dependency>
> <dependentAssembly>
> <assemblyIdentity type='win32' name='Microsoft.VC90.CRT'
> version='9.0.21022.8' processorArchitecture='amd64'
> publicKeyToken='1fc8b3b9a1e18e3b' />
> </dependentAssembly>
> </dependency>
> </assembly>
>
> for 32 Bit:
>
> <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
> <assembly xmlns="urn:schemas-microsoft-com:asm.v1" manifestVersion="1.0">
> <trustInfo xmlns="urn:schemas-microsoft-com:asm.v3">
> <security>
> <requestedPrivileges>
> <requestedExecutionLevel level="asInvoker"
> uiAccess="false"></requestedExecutionLevel>
> </requestedPrivileges>
> </security>
> </trustInfo>
> <dependency>
> <dependentAssembly>
> <assemblyIdentity type="win32" name="Microsoft.VC90.CRT"
> version="9.0.21022.8" processorArchitecture="x86"
> publicKeyToken="1fc8b3b9a1e18e3b"></assemblyIdentity>
> </dependentAssembly>
> </dependency>
> </assembly>
>
>
>
> Best regards
> Sebastian
>
>
>
>
>
>
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