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| author | Gerd Moellmann <gerd@gnu.org> | 2001-02-23 13:31:40 +0000 |
|---|---|---|
| committer | Gerd Moellmann <gerd@gnu.org> | 2001-02-23 13:31:40 +0000 |
| commit | 3aa40e0e0256a2ab87d78b34271e0c00ed29e1d9 (patch) | |
| tree | 8e78269e69542aa5a6c3a3888ab8260b3197a4b6 /configure.in | |
| parent | c400241bbe7188bad1aaa6a34cbc7cb1b6881d65 (diff) | |
| download | emacs-3aa40e0e0256a2ab87d78b34271e0c00ed29e1d9.tar.gz | |
Use AC_EGREP_CPP to check if the C preprocessor
converts `..' to `. .'. If it converts, set CPP_NEED_TRADITIONAL
to `yes'. Later in AC_OUTPUT, check this variable.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/configure.in b/configure.in index c8e0af02663..460d1b31d06 100644 --- a/configure.in +++ b/configure.in @@ -2232,6 +2232,16 @@ test "${exec_prefix}" != NONE && exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'` changequote([, ])dnl +## Check if the C preprocessor will convert `..' to `. .'. If so, set +## CPP_NEED_TRADITIONAL to `yes' so that the code to generate Makefile +## from Makefile.c can correctly provide the arg `-traditional' to the +## C preprocessor. + +AC_EGREP_CPP(yes..yes, + [yes..yes], + CPP_NEED_TRADITIONAL=no, + CPP_NEED_TRADITIONAL=yes) + AC_OUTPUT(Makefile lib-src/Makefile.c:lib-src/Makefile.in oldXMenu/Makefile \ man/Makefile lwlib/Makefile src/Makefile.c:src/Makefile.in \ lisp/Makefile leim/Makefile, [ @@ -2264,7 +2274,7 @@ make epaths-force # As of 2000-11-19, newest development versions of GNU cpp preprocess # `..' to `. .' unless invoked with -traditional -if test "x$GCC" = xyes && test "x$NON_GNU_CPP" = x; then +if test "x$GCC" = xyes && test "x$CPP_NEED_TRADITIONAL" = xyes; then CPPFLAGS="$CPPFLAGS -traditional" fi @@ -2308,5 +2318,5 @@ fi # This is how we know whether to re-run configure in certain cases. touch src/config.stamp -], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPPFLAGS="$CPPFLAGS"]) +], [GCC="$GCC" NON_GNU_CPP="$NON_GNU_CPP" CPP="$CPP" CPP_NEED_TRADITIONAL="$CPP_NEED_TRADITIONAL" CPPFLAGS="$CPPFLAGS"]) |