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configure: Pass CPPFLAGS_FOR_BUILD to subdirs

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Because CPPFLAGS_FOR_BUILD is used in some subdirectories (through
bfd/warning.m4), not AC_SUBSTing the variable causes minor issues.

Fortunately, it didn't cause severe errors but error messages related to
@CPPFLAGS_FOR_BUILD@ (not AC_SUBSTed CPPFLAGS_FOR_BUILD variable passed
to subdirectories through Makefile) remain in config.log.

To avoid invalid invocation of preprocessor for build environment, we
need to set proper CPPFLAGS_FOR_BUILD (may be empty) and pass it to
subdirectories that need it.  This is what this commit does.

ChangeLog:

	* configure.ac: Pass CPPFLAGS_FOR_BUILD to subdirectories.
	* configure: Regenerate.
This commit is contained in:
Tsukasa OI 2022-09-14 12:28:02 +00:00
parent 96462b0129
commit e472ec9fad
2 changed files with 5 additions and 0 deletions
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3
configure vendored
View File

@ -651,6 +651,7 @@ GFORTRAN_FOR_BUILD
DLLTOOL_FOR_BUILD
CXX_FOR_BUILD
CXXFLAGS_FOR_BUILD
CPPFLAGS_FOR_BUILD
CFLAGS_FOR_BUILD
CC_FOR_BUILD
AS_FOR_BUILD
@ -8024,6 +8025,7 @@ esac
# our build compiler if desired.
if test x"${build}" = x"${host}" ; then
CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
fi
@ -8102,6 +8104,7 @@ done
# Generate default definitions for YACC, M4, LEX and other programs that run
# on the build machine. These are used if the Makefile can't locate these
# programs in objdir.

2
configure.ac
View File

@ -3326,6 +3326,7 @@ esac
# our build compiler if desired.
if test x"${build}" = x"${host}" ; then
CFLAGS_FOR_BUILD=${CFLAGS_FOR_BUILD-${CFLAGS}}
CPPFLAGS_FOR_BUILD=${CPPFLAGS_FOR_BUILD-${CPPFLAGS}}
CXXFLAGS_FOR_BUILD=${CXXFLAGS_FOR_BUILD-${CXXFLAGS}}
LDFLAGS_FOR_BUILD=${LDFLAGS_FOR_BUILD-${LDFLAGS}}
fi
@ -3392,6 +3393,7 @@ AC_SUBST(AR_FOR_BUILD)
AC_SUBST(AS_FOR_BUILD)
AC_SUBST(CC_FOR_BUILD)
AC_SUBST(CFLAGS_FOR_BUILD)
AC_SUBST(CPPFLAGS_FOR_BUILD)
AC_SUBST(CXXFLAGS_FOR_BUILD)
AC_SUBST(CXX_FOR_BUILD)
AC_SUBST(DLLTOOL_FOR_BUILD)