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ruby: improve compilation with CFLAGS

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The ruby MakeMakefile generates a makefile that is suboptimal, which has
CFLAGS like this:

  CFLAGS   = $(CCDLFLAGS) -march=x86-64 -mtune=generic \
    -O2 -pipe -fno-plt -fPIC $(ARCH_FLAG)

This works as long as the user doesn't modify the Makefile.

Certain flags (namely -fPIC) need to be present regardless of what
CFLAGS are specified.

The Makefile should have done this instead:

  CFLAGS = -march=x86-64 -mtune=generic -O2
  override CFLAGS += $(CCDLFLAGS) -pipe -fno-plt -fPIC $(ARCH_FLAG)

Unfortunately they didn't, so we need to workaround their lack of
foresight.

We can simply add the necessary flags in the parent Makefile so everyone
is happy.

Signed-off-by: Felipe Contreras <felipe.contreras@gmail.com>
This commit is contained in:
Felipe Contreras 2021-05-17 00:47:46 -05:00 committed by David Bremner
parent ff07183a02
commit 3dae253c4f
1 changed files with 1 additions and 1 deletions
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2
bindings/Makefile.local
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@ -10,7 +10,7 @@ ifeq ($(HAVE_RUBY_DEV),1)
LIBNOTMUCH="../../lib/$(LINKER_NAME)" \
NOTMUCH_SRCDIR='$(NOTMUCH_SRCDIR)' \
$(RUBY) extconf.rb --vendor
$(MAKE) -C $(dir)/ruby
$(MAKE) -C $(dir)/ruby CFLAGS="$(CFLAGS) -pipe -fno-plt -fPIC"
endif
python-cffi-bindings: lib/$(LINKER_NAME)