34 lines
862 B
Plaintext
34 lines
862 B
Plaintext
# Check if a given macro is defined in a certain header.
|
|
|
|
# AST_C_DEFINE_CHECK([package], [macro name], [header file], [version])
|
|
AC_DEFUN([AST_C_DEFINE_CHECK],
|
|
[
|
|
if test "x${PBX_$1}" != "x1"; then
|
|
AC_MSG_CHECKING([for $2 in $3])
|
|
saved_cppflags="${CPPFLAGS}"
|
|
if test "x${$1_DIR}" != "x"; then
|
|
$1_INCLUDE="-I${$1_DIR}/include"
|
|
fi
|
|
CPPFLAGS="${CPPFLAGS} ${$1_INCLUDE}"
|
|
|
|
AC_COMPILE_IFELSE(
|
|
[ AC_LANG_PROGRAM( [#include <$3>],
|
|
[#if defined($2)
|
|
int foo = 0;
|
|
#else
|
|
int foo = bar;
|
|
#endif
|
|
0
|
|
])],
|
|
[ AC_MSG_RESULT(yes)
|
|
PBX_$1=1
|
|
AC_DEFINE([HAVE_$1], 1, [Define if your system has the $1 headers.])
|
|
m4_ifval([$4], [AC_DEFINE([HAVE_$1_VERSION], $4, [Define $1 headers version])])
|
|
],
|
|
[ AC_MSG_RESULT(no) ]
|
|
)
|
|
CPPFLAGS="${saved_cppflags}"
|
|
fi
|
|
AC_SUBST(PBX_$1)
|
|
])
|