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comment a bit the code in acinclude.m4

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There is still a lot of code to clean up there, but hopefully
this should clarify what goes on in there.


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@89448 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Luigi Rizzo
2007-11-20 14:54:52 +00:00
parent 564e0815b6
commit 50f899b0c3
2 changed files with 814 additions and 799 deletions
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52
acinclude.m4
View File

@@ -1,3 +1,7 @@
# Various support functions for configure.ac in asterisk
#
# Helper function to check for gcc attributes.
# AST_GCC_ATTRIBUTE([attribute name]) # AST_GCC_ATTRIBUTE([attribute name])
AC_DEFUN([AST_GCC_ATTRIBUTE], AC_DEFUN([AST_GCC_ATTRIBUTE],
@@ -11,13 +15,20 @@ AC_COMPILE_IFELSE(
AC_MSG_RESULT(no)) AC_MSG_RESULT(no))
]) ])
# AST_EXT_LIB_SETUP([package symbol name], [package friendly name], [package option name], [additional help text]) # Helper function to setup variables for a package.
# $1 -> the package name. Used in configure.ac and also as a prefix
# for the variables ($1_DIR, $1_INCLUDE, $1_LIB) in makeopts
# $3 -> option name, used in --with-$3 or --without-$3 when calling configure.
# $2 and $4 are just text describing the package (short and long form)
# AST_EXT_LIB_SETUP([package], [short description], [configure option name], [long description])
AC_DEFUN([AST_EXT_LIB_SETUP], AC_DEFUN([AST_EXT_LIB_SETUP],
[ [
$1_DESCRIP="$2" $1_DESCRIP="$2"
$1_OPTION="$3" $1_OPTION="$3"
AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH $4]),[ AC_ARG_WITH([$3], AC_HELP_STRING([--with-$3=PATH],[use $2 files in PATH $4]),
[
case ${withval} in case ${withval} in
n|no) n|no)
USE_$1=no USE_$1=no
@@ -39,7 +50,8 @@ AC_SUBST([PBX_$1])
]) ])
# Check whether any of the mandatory modules are not present, and # Check whether any of the mandatory modules are not present, and
# print error messages in case. # print error messages in case. The mandatory list is built using
# --with-* arguments when invoking configure.
AC_DEFUN([AST_CHECK_MANDATORY], AC_DEFUN([AST_CHECK_MANDATORY],
[ [
@@ -61,16 +73,22 @@ AC_DEFUN([AST_CHECK_MANDATORY],
AC_MSG_RESULT(ok) AC_MSG_RESULT(ok)
]) ])
#-- The following two tests are only performed if PBX_$1 != 1, # The next three functions check for the availability of a given package.
# so you can use multiple tests and stop at the first matching one. # AST_C_DEFINE_CHECK looks for the presence of a #define in a header file,
# On success, set PBX_$1 = 1, and also #define HAVE_$1 1 # AST_EXT_LIB_CHECK looks for a symbol in a given library, or at least
# and #define HAVE_$1_VERSION ${last_argument} so you can tell which # for the presence of a header file.
# test succeeded. # AST_EXT_TOOL_CHECK looks for a symbol in using $1-config to determine CFLAGS and LIBS
#
# They are only run if PBX_$1 != 1 (where $1 is the package),
# so you can call them multiple times and stop at the first matching one.
# On success, they both set PBX_$1 = 1, set $1_INCLUDE and $1_LIB as applicable,
# and also #define HAVE_$1 1 and #define HAVE_$1_VERSION ${last_argument}
# in autoconfig.h so you can tell which test succeeded.
# They should be called after AST_EXT_LIB_SETUP($1, ...) # They should be called after AST_EXT_LIB_SETUP($1, ...)
# Check if a given macro is defined in a certain header. # Check if a given macro is defined in a certain header.
# AST_C_DEFINE_CHECK([package symbol name], [macro name], [header file], [version]) # AST_C_DEFINE_CHECK([package], [macro name], [header file], [version])
AC_DEFUN([AST_C_DEFINE_CHECK], AC_DEFUN([AST_C_DEFINE_CHECK],
[ [
if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
@@ -99,7 +117,7 @@ AC_DEFUN([AST_C_DEFINE_CHECK],
# in a library, or, if no function is supplied, only check for the # in a library, or, if no function is supplied, only check for the
# existence of the header files. # existence of the header files.
# AST_EXT_LIB_CHECK([package symbol name], [package library name], [function to check], [package header], [additional LIB data], [version]) # AST_EXT_LIB_CHECK([package], [library], [function], [header], [additional LIB data], [version])
AC_DEFUN([AST_EXT_LIB_CHECK], AC_DEFUN([AST_EXT_LIB_CHECK],
[ [
if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
@@ -152,10 +170,13 @@ fi
]) ])
# check for a tool using xxx-config # Check for a package using $2-config. Similar to AST_EXT_LIB_CHECK,
# AST_EXT_TOOL_CHECK([package symbol name], [package library name], [symbol], [version]) # but use $2-config to determine cflags and libraries to use.
# AST_EXT_TOOL_CHECK([package], [tool name], [symbol], [version])
AC_DEFUN([AST_EXT_TOOL_CHECK], AC_DEFUN([AST_EXT_TOOL_CHECK],
[ [
if test "x${PBX_$1}" != "x1" -a "${USE_$1}" != "no"; then
PBX_$1=0 PBX_$1=0
AC_CHECK_TOOL(CONFIG_$1, $2-config, No) AC_CHECK_TOOL(CONFIG_$1, $2-config, No)
if test ! "x${CONFIG_$1}" = xNo; then if test ! "x${CONFIG_$1}" = xNo; then
@@ -164,9 +185,7 @@ if test ! "x${CONFIG_$1}" = xNo; then
PBX_$1=1 PBX_$1=1
AC_DEFINE([HAVE_$1], 1, [Define if your system has the $1 libraries.]) AC_DEFINE([HAVE_$1], 1, [Define if your system has the $1 libraries.])
fi fi
AC_SUBST(PBX_$1) fi
AC_SUBST($1_INCLUDE)
AC_SUBST($1_LIB)
]) ])
AC_DEFUN( AC_DEFUN(
@@ -830,7 +849,8 @@ dnl @author Steven G. Johnson <stevenj@alum.mit.edu>
dnl @version 2006-05-29 dnl @version 2006-05-29
dnl @license GPLWithACException dnl @license GPLWithACException
AC_DEFUN([ACX_PTHREAD], [ AC_DEFUN([ACX_PTHREAD],
[
AC_REQUIRE([AC_CANONICAL_HOST]) AC_REQUIRE([AC_CANONICAL_HOST])
AC_LANG_SAVE AC_LANG_SAVE
AC_LANG_C AC_LANG_C

15
configure vendored
View File

@@ -1,5 +1,5 @@
#! /bin/sh #! /bin/sh
# From configure.ac Revision: 89394 . # From configure.ac Revision: 89395 .
# Guess values for system-dependent variables and create Makefiles. # Guess values for system-dependent variables and create Makefiles.
# Generated by GNU Autoconf 2.61. # Generated by GNU Autoconf 2.61.
# #
@@ -12403,13 +12403,11 @@ _ACEOF
cat confdefs.h >>conftest.$ac_ext cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */ /* end confdefs.h. */
#include <sys/types.h> /* for off_t */
#include <stdio.h> #include <stdio.h>
int int
main () main ()
{ {
int (*fp) (FILE *, off_t, int) = fseeko; return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
; ;
return 0; return 0;
} }
@@ -12449,13 +12447,11 @@ cat confdefs.h >>conftest.$ac_ext
cat >>conftest.$ac_ext <<_ACEOF cat >>conftest.$ac_ext <<_ACEOF
/* end confdefs.h. */ /* end confdefs.h. */
#define _LARGEFILE_SOURCE 1 #define _LARGEFILE_SOURCE 1
#include <sys/types.h> /* for off_t */
#include <stdio.h> #include <stdio.h>
int int
main () main ()
{ {
int (*fp) (FILE *, off_t, int) = fseeko; return fseeko (stdin, 0, 0) && (fseeko) (stdin, 0, 0);
return fseeko (stdin, 0, 0) && fp (stdin, 0, 0);
; ;
return 0; return 0;
} }
@@ -56505,6 +56501,7 @@ fi
if test "x${PBX_SDL}" != "x1" -a "${USE_SDL}" != "no"; then
PBX_SDL=0 PBX_SDL=0
if test -n "$ac_tool_prefix"; then if test -n "$ac_tool_prefix"; then
# Extract the first word of "${ac_tool_prefix}sdl-config", so it can be a program name with args. # Extract the first word of "${ac_tool_prefix}sdl-config", so it can be a program name with args.
@@ -56612,9 +56609,7 @@ cat >>confdefs.h <<\_ACEOF
_ACEOF _ACEOF
fi fi
fi
if test "x${PBX_SDL_IMAGE}" != "x1" -a "${USE_SDL_IMAGE}" != "no"; then if test "x${PBX_SDL_IMAGE}" != "x1" -a "${USE_SDL_IMAGE}" != "no"; then