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add basic support for checking for C compiler attribute support


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@23380 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2006-04-29 15:31:45 +00:00
parent 24f241bc72
commit 3878a2a9fb
3 changed files with 21 additions and 3 deletions
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19
acinclude.m4
View File

@@ -68,7 +68,7 @@ AC_SUBST([PBX_LIB$1])
AC_DEFUN( AC_DEFUN(
[AST_CHECK_GNU_MAKE], [ AC_CACHE_CHECK( for GNU make, GNU_MAKE, [AST_CHECK_GNU_MAKE], [AC_CACHE_CHECK(for GNU make, GNU_MAKE,
GNU_MAKE='Not Found' ; GNU_MAKE='Not Found' ;
for a in make gmake gnumake ; do for a in make gmake gnumake ; do
if test -z "$a" ; then continue ; fi ; if test -z "$a" ; then continue ; fi ;
@@ -83,4 +83,19 @@ if test "x$GNU_MAKE" = "xNot Found" ; then
exit 1 exit 1
fi fi
AC_SUBST([GNU_MAKE]) AC_SUBST([GNU_MAKE])
] ) ])
AC_DEFUN(
[AST_C_ATTRIBUTE],
[AC_CACHE_CHECK([for $1 attribute support],
[ac_cv_attribute_$1],
AC_COMPILE_IFELSE(
AC_LANG_PROGRAM(
[[static void foo(void) __attribute__ (($1));xyz]],
[]),
have_attribute_$1=1, have_attribute_$1=0)
)
if test "$have_attribute_$1" = "1"; then
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to indicate the compiler supports __attribute__ (($1))])
fi
])

3
configure.ac
View File

@@ -614,6 +614,9 @@ AC_HEADER_TIME
AC_STRUCT_TM AC_STRUCT_TM
AC_C_VOLATILE AC_C_VOLATILE
AC_CHECK_TYPES([ptrdiff_t]) AC_CHECK_TYPES([ptrdiff_t])
AST_C_ATTRIBUTE([malloc])
AST_C_ATTRIBUTE([printf])
AST_C_ATTRIBUTE([mallocx])
# Checks for library functions. # Checks for library functions.
AC_FUNC_CHOWN AC_FUNC_CHOWN

2
utils/Makefile
View File

@@ -57,7 +57,7 @@ astman: astman.o ../md5.o
stereorize: stereorize.o frame.o stereorize: stereorize.o frame.o
$(CC) $(CFLAGS) -o stereorize stereorize.o frame.o -lm $(CC) $(CFLAGS) -o stereorize stereorize.o frame.o -lm
.PHONY: ../ast_expr2.o ../ast_expr2f.o ../pbx/ael/aelflex.o ../pbx/ael/aelbison.o ../pbx/pbx_ael.o .PHONY: ../ast_expr2.c ../ast_expr2f.c ../pbx/ael/aelflex.o ../pbx/ael/aelbison.o ../pbx/pbx_ael.o
ast_expr2.o: ../ast_expr2.c ast_expr2.o: ../ast_expr2.c
gcc $(CFLAGS) -include ../include/autoconfig.h -c -o $@ $< gcc $(CFLAGS) -include ../include/autoconfig.h -c -o $@ $<