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Fix for Cygwin's environment build-profile (fixed)

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The Cygwin environment has two g++ compilers, each with a different problem
for compiling  Stockfish at the moment:

(a) g++.exe : full posix build compiler, linked to cygwin dll.

    => This one has a problem embedding the net.

(b) x86_64-w64-mingw32-g++.exe : native Windows build compiler.

    => This one manages to embed the net, but has a problem related to libgcov
       when we use the profile-build target of Stockfish.

This patch solves the problem for compiler (b), so that our recommended command line
if you want to build an optimized version of Stockfish on Cygwin becomes something
like the following (you can change the ARCH value to whatever you want, but note
the COMP and CXX variables pointing at the right compiler):

```
   make -j profile-build ARCH=x86-64-modern COMP=mingw CXX=x86_64-w64-mingw32-c++.exe
```

closes https://github.com/official-stockfish/Stockfish/pull/3569

No functional change
This commit is contained in:
proukornew 2021-06-19 00:52:46 +03:00 • committed by Joost VandeVondele
parent adfb23c029
commit 0171b506ec
1 changed files with 3 additions and 2 deletions
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5
src/Makefile
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@ -883,14 +883,15 @@ clang-profile-use:
all all
gcc-profile-make: gcc-profile-make:
@mkdir -p profdir
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) \ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
EXTRACXXFLAGS='-fprofile-generate' \ EXTRACXXFLAGS='-fprofile-generate=profdir' \
EXTRALDFLAGS='-lgcov' \ EXTRALDFLAGS='-lgcov' \
all all
gcc-profile-use: gcc-profile-use:
$(MAKE) ARCH=$(ARCH) COMP=$(COMP) \ $(MAKE) ARCH=$(ARCH) COMP=$(COMP) \
EXTRACXXFLAGS='-fprofile-use -fno-peel-loops -fno-tracer' \ EXTRACXXFLAGS='-fprofile-use=profdir -fno-peel-loops -fno-tracer' \
EXTRALDFLAGS='-lgcov' \ EXTRALDFLAGS='-lgcov' \
all all