https://gcc.gnu.org/bugzilla/show_bug.cgi?id=66634
Bug ID: 66634
Summary: Cross building native *-w64-mingw32 failed
Product: gcc
Version: 6.0
Status: UNCONFIRMED
Severity: major
Priority: P3
Component: target
Assignee: unassigned at gcc dot gnu.org
Reporter: dongsheng.song at gmail dot com
Target Milestone: ---
The cross compiler building fine, but when use it to build the native compiler,
I got:
make[2]: Entering directory '/home/cauchy/obj/native/gcc-6-win64/gcc/gcc'
g++ -DIN_GCC -DGENERATOR_FILE -fno-PIE -no-pie -o build/genmddeps \
build/genmddeps.o build/read-md.o build/errors.o
../build-x86_64-unknown-linux-gnu/libiberty/libiberty.a
g++: error: unrecognized command line option ‘-no-pie’
Makefile:2631: recipe for target 'build/genmddeps' failed
Checking the gcc-6-win64/gcc/gcc/config.log, I found:
configure:28726: checking for -fno-PIE option
configure:28737: x86_64-w64-mingw32-g++ -c -g -fno-PIE conftest.cpp >&5
configure:28737: $? = 0
configure:28745: result: yes
configure:28753: checking for -no-pie option
configure:28764: x86_64-w64-mingw32-g++ -o conftest.exe -g -static-libstdc++
-static-libgcc -Wl,--stack,12582912 -no-pie conftest.cpp >&5
configure:28764: $? = 0
configure:28773: result: yes
So the issue is gcc build script mixed up the target flags and the host flags.
