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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