This code
#include <cwchar>
int main(int argc, char* argv[])
{
__iswcsymf(0);
return 0;
}
compiled with this command
g++ -o test test.cpp
Fails with
C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/../../../../x86_64-w64-mingw32/bin/ld.exe:
D:\TEMP\ccmM3An6.o:test.cpp:(.text+0x1c): undefined reference to
`__imp___iswcsymf'
collect2.exe: error: ld returned 1 exit status
g++ -v output
C:\qa\vc21__89949\workspaces\campaign_enviroedg\test_build\suite_add_test_func_lib\working_dir>g++
-v
Using built-in specs.
COLLECT_GCC=g++
COLLECT_LTO_WRAPPER=C:/msys64/mingw64/bin/../lib/gcc/x86_64-w64-mingw32/10.2.0/lto-wrapper.exe
Target: x86_64-w64-mingw32
Configured with: ../gcc-10.2.0/configure --prefix=/mingw64
--with-local-prefix=/mingw64/local --build=x86_64-w64-mingw32
--host=x86_64-w64-mingw32 --target=x86_64-w64-mingw32
--with-native-system-header-dir=/mingw64/x86_64-w64-mingw32/include
--libexecdir=/mingw64/lib --enable-bootstrap --with-arch=x86-64
--with-tune=generic --enable-languages=c,lto,c++,fortran,ada,objc,obj-c++
--enable-shared --enable-static --enable-libatomic --enable-threads=posix
--enable-graphite --enable-fully-dynamic-string
--enable-libstdcxx-filesystem-ts=yes --enable-libstdcxx-time=yes
--disable-libstdcxx-pch --disable-libstdcxx-debug --disable-isl-version-check
--enable-lto --enable-libgomp --disable-multilib --enable-checking=release
--disable-rpath --disable-win32-registry --disable-nls --disable-werror
--disable-symvers --disable-plugin --with-libiconv --with-system-zlib
--with-gmp=/mingw64 --with-mpfr=/mingw64 --with-mpc=/mingw64
--with-isl=/mingw64 --with-pkgversion='Rev4, Built by MSYS2 project'
--with-bugurl=https://github.com/msys2/MINGW-packages/issues --with-gnu-as
--with-gnu-ld --with-boot-ldflags='-pipe
-Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high
-Wl,--disable-dynamicbase -static-libstdc++ -static-libgcc'
'LDFLAGS_FOR_TARGET=-pipe
-Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high'
--enable-linker-plugin-flags='LDFLAGS=-static-libstdc++\ -static-libgcc\ -pipe\
-Wl,--dynamicbase,--high-entropy-va,--nxcompat,--default-image-base-high\
-Wl,--stack,12582912'
Thread model: posix
Supported LTO compression algorithms: zlib zstd
gcc version 10.2.0 (Rev4, Built by MSYS2 project)
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