Build: Make function constructor/destructor attributes mandatory.

This change causes the configure script to fail if the C compiler does
not support both function attributes constructor and destructor.  These
were already required as modules cannot function without these attributes
and Asterisk requires modules.

This also has AST_GCC_ATTRIBUTE set a variable
ax_cv_have_func_attribute_$1.  This is the same variable name used by
autoconf-archive's AX_GCC_FUNC_ATTRIBUTE, used for the same purpose.

Change-Id: Id68e8a1447f2a6d707c54b56350e7bfdb33fb663
This commit is contained in:
Corey Farrell
2017-10-30 23:09:17 -04:00
parent 6f1910d6ec
commit e9f8b317c3
4 changed files with 53 additions and 4 deletions

View File

@@ -7,6 +7,7 @@ AC_MSG_CHECKING(for compiler 'attribute $1' support)
saved_CFLAGS="$CFLAGS"
CFLAGS="$CFLAGS -Wall -Wno-unused -Werror"
m4_ifval([$4],$4=0)
ax_cv_have_func_attribute_$1=0
if test "x$2" = "x"
then
@@ -15,6 +16,7 @@ AC_COMPILE_IFELSE(
[])],
AC_MSG_RESULT(yes)
m4_ifval([$4],$4=1)
ax_cv_have_func_attribute_$1=1
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
AC_MSG_RESULT(no)
)
@@ -24,6 +26,7 @@ AC_COMPILE_IFELSE(
[])],
AC_MSG_RESULT(yes)
m4_ifval([$4],$4=1)
ax_cv_have_func_attribute_$1=1
AC_DEFINE_UNQUOTED([HAVE_ATTRIBUTE_$1], 1, [Define to 1 if your GCC C compiler supports the '$1' attribute.]),
AC_MSG_RESULT(no)
)