Changeset 1f86d5e for automake

Timestamp:

Feb 10, 2019, 10:12:55 AM (6 years ago)

Author:

Peter A. Buhr <pabuhr@…>

Branches:

ADT, aaron-thesis, arm-eh, ast-experimental, cleanup-dtors, enum, forall-pointer-decay, jacob/cs343-translation, jenkins-sandbox, master, new-ast, new-ast-unique-expr, persistent-indexer, pthread-emulation, qualifiedEnum

Children:

015dc50

Parents:

4fd45bc

Message:

remove unnecessary requirements in configure.ac, add check for -Wcast-function-type and _FloatNN, disable -Wcast-function-type for gcc-8

File:

• automake/cfa.m4 (modified) (1 diff)

automake/cfa.m4

@@ -80 +80 @@
         esac
 ])
+
+# http://git.savannah.gnu.org/gitweb/?p=autoconf-archive.git;a=blob_plain;f=m4/ax_check_compile_flag.m4
+AC_DEFUN([M4CFA_CHECK_COMPILE_FLAG],
+[AC_PREREQ(2.64)dnl for _AC_LANG_PREFIX and AS_VAR_IF
+AS_VAR_PUSHDEF([CACHEVAR],[m4cfa_cv_check_[]_AC_LANG_ABBREV[]flags_$4_$1])dnl
+AC_CACHE_CHECK([whether _AC_LANG compiler accepts $1], CACHEVAR, [
+        m4cfa_check_save_flags=$[]_AC_LANG_PREFIX[]FLAGS
+        _AC_LANG_PREFIX[]FLAGS="$[]_AC_LANG_PREFIX[]FLAGS $4 $1"
+        AC_COMPILE_IFELSE([m4_default([$5],[AC_LANG_PROGRAM()])],
+                [AS_VAR_SET(CACHEVAR,[yes])],
+                [AS_VAR_SET(CACHEVAR,[no])])
+        _AC_LANG_PREFIX[]FLAGS=$m4cfa_check_save_flags])
+AS_VAR_IF(CACHEVAR,yes,
+        [m4_default([$2], :)],
+        [m4_default([$3], :)])
+AS_VAR_POPDEF([CACHEVAR])dnl
+])dnl M4CFA_CHECK_COMPILE_FLAGS