diff options
| -rw-r--r-- | lib/autoconf/headers.m4 | 16 |
1 files changed, 10 insertions, 6 deletions
diff --git a/lib/autoconf/headers.m4 b/lib/autoconf/headers.m4 index 5f4ab4a8..8e2dbb02 100644 --- a/lib/autoconf/headers.m4 +++ b/lib/autoconf/headers.m4 @@ -185,12 +185,17 @@ m4_define([AH_CHECK_HEADERS], # header. Either ACTION may include `break' to stop the search. AC_DEFUN([AC_CHECK_HEADERS], [m4_map_args_w([$1], [_AH_CHECK_HEADER(], [)])]dnl -[AS_FOR([AC_header], [ac_header], [$1], -[AC_CHECK_HEADER(AC_header, - [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_]AC_header)) $2], - [$3], [$4])dnl]) +[m4_if([$2$3]AS_LITERAL_IF([$1], [[yes]], [[no]]), [yes], + [m4_map_args_w([$1], [_$0(], [, [], [], [$4])])], + [AS_FOR([AC_header], [ac_header], [$1], [_$0(AC_header, [$2], [$3], [$4])])])dnl ])# AC_CHECK_HEADERS +m4_define([_AC_CHECK_HEADERS], +[AC_CHECK_HEADER([$1], + [AC_DEFINE_UNQUOTED(AS_TR_CPP([HAVE_]$1)) $2], + [$3], [$4])dnl +]) + # _AC_CHECK_HEADER_ONCE(HEADER-FILE) # ---------------------------------- @@ -285,8 +290,7 @@ ac_includes_default="\ #endif" ])]dnl [_AC_CHECK_HEADERS_ONCE( - [sys/types.h sys/stat.h strings.h inttypes.h stdint.h unistd.h], - [], [], [$ac_includes_default])]dnl + [sys/types.h sys/stat.h strings.h inttypes.h stdint.h unistd.h])]dnl dnl For backward compatibility, provide unconditional AC_DEFINEs of dnl HAVE_STDLIB_H, HAVE_STRING_H, and STDC_HEADERS. [AC_DEFINE([HAVE_STDLIB_H], [1], |