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-rw-r--r--lib/mkmf.rb6
1 files changed, 3 insertions, 3 deletions
diff --git a/lib/mkmf.rb b/lib/mkmf.rb
index 788a957792..317200ba79 100644
--- a/lib/mkmf.rb
+++ b/lib/mkmf.rb
@@ -44,7 +44,7 @@ else
end
LINK = "#{CONFIG['CC']} -o conftest -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s #{CONFIG['LDFLAGS']} %s conftest.c %s %s #{CONFIG['LIBS']}"
-CPP = "#{CONFIG['CPP']} -E -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s %s conftest.c"
+CPP = "#{CONFIG['CPP']} -E %s -I#{$hdrdir} #{CFLAGS} -I#{CONFIG['includedir']} %s %s conftest.c"
def rm_f(*files)
targets = []
@@ -104,7 +104,7 @@ def try_cpp(src, opt="")
cfile.print src
cfile.close
begin
- xsystem(format(CPP, $CFLAGS, opt))
+ xsystem(format(CPP, $CPPFLAGS, $CFLAGS, opt))
ensure
rm_f "conftest*"
end
@@ -115,7 +115,7 @@ def egrep_cpp(pat, src, opt="")
cfile.print src
cfile.close
begin
- xsystem(format(CPP+"|egrep #{pat}", $CFLAGS, opt))
+ xsystem(format(CPP+"|egrep #{pat}", $CPPFLAGS, $CFLAGS, opt))
ensure
rm_f "conftest*"
end