Initial commit

m4/Makefile.am

@@ -0,0 +1,4 @@
+EXTRA_DIST = \
+as-compiler-flag.m4 \
+as-version.m4 \
+as-ac-expand.m4

m4/as-ac-expand.m4

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+dnl AS_AC_EXPAND(VAR, CONFIGURE_VAR)
+dnl
+dnl example
+dnl AS_AC_EXPAND(SYSCONFDIR, $sysconfdir)
+dnl will set SYSCONFDIR to /usr/local/etc if prefix=/usr/local
+
+AC_DEFUN([AS_AC_EXPAND],
+[
+  EXP_VAR=[$1]
+  FROM_VAR=[$2]
+
+  dnl first expand prefix and exec_prefix if necessary
+  prefix_save=$prefix
+  exec_prefix_save=$exec_prefix
+
+  dnl if no prefix given, then use /usr/local, the default prefix
+  if test "x$prefix" = "xNONE"; then
+    prefix=$ac_default_prefix
+  fi
+  dnl if no exec_prefix given, then use prefix
+  if test "x$exec_prefix" = "xNONE"; then
+    exec_prefix=$prefix
+  fi
+
+  full_var="$FROM_VAR"
+  dnl loop until it doesn't change anymore
+  while true; do
+    new_full_var="`eval echo $full_var`"
+    if test "x$new_full_var"="x$full_var"; then break; fi
+    full_var=$new_full_var
+  done
+
+  dnl clean up
+  full_var=$new_full_var
+  AC_SUBST([$1], "$full_var")
+
+  dnl restore prefix and exec_prefix
+  prefix=$prefix_save
+  exec_prefix=$exec_prefix_save
+])

m4/as-compiler-flag.m4

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+dnl as-compiler-flag.m4 0.1.0
+
+dnl autostars m4 macro for detection of compiler flags
+
+dnl David Schleef <ds@schleef.org>
+
+dnl $Id: as-compiler-flag.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $
+
+dnl AS_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
+dnl Tries to compile with the given CFLAGS.
+dnl Runs ACTION-IF-ACCEPTED if the compiler can compile with the flags,
+dnl and ACTION-IF-NOT-ACCEPTED otherwise.
+
+AC_DEFUN([AS_COMPILER_FLAG],
+[
+  AC_MSG_CHECKING([to see if compiler understands $1])
+
+  save_CFLAGS="$CFLAGS"
+  CFLAGS="$CFLAGS $1"
+
+  AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
+  CFLAGS="$save_CFLAGS"
+
+  if test "X$flag_ok" = Xyes ; then
+    $2
+    true
+  else
+    $3
+    true
+  fi
+  AC_MSG_RESULT([$flag_ok])
+])
+

m4/as-version.m4

@@ -0,0 +1,66 @@
+dnl as-version.m4 0.1.0
+
+dnl autostars m4 macro for versioning
+
+dnl Thomas Vander Stichele <thomas at apestaart dot org>
+
+dnl $Id: as-version.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $
+
+dnl AS_VERSION(PACKAGE, PREFIX, MAJOR, MINOR, MICRO, NANO,
+dnl            ACTION-IF-NO-NANO, [ACTION-IF-NANO])
+
+dnl example
+dnl AS_VERSION(gstreamer, GST_VERSION, 0, 3, 2,)
+dnl for a 0.3.2 release version
+
+dnl this macro
+dnl - defines [$PREFIX]_MAJOR, MINOR and MICRO
+dnl - if NANO is empty, then we're in release mode, else in cvs/dev mode
+dnl - defines [$PREFIX], VERSION, and [$PREFIX]_RELEASE
+dnl - executes the relevant action
+dnl - AC_SUBST's PACKAGE, VERSION, [$PREFIX] and [$PREFIX]_RELEASE
+dnl   as well as the little ones
+dnl - doesn't call AM_INIT_AUTOMAKE anymore because it prevents
+dnl   maintainer mode from running ok
+dnl
+dnl don't forget to put #undef [$2] and [$2]_RELEASE in acconfig.h
+dnl if you use acconfig.h
+
+AC_DEFUN([AS_VERSION],
+[
+  PACKAGE=[$1]
+  [$2]_MAJOR=[$3]
+  [$2]_MINOR=[$4]
+  [$2]_MICRO=[$5]
+  NANO=[$6]
+  [$2]_NANO=$NANO
+  if test "x$NANO" = "x" || test "x$NANO" = "x0";
+  then
+      AC_MSG_NOTICE(configuring [$1] for release)
+      VERSION=[$3].[$4].[$5]
+      [$2]_RELEASE=1
+      dnl execute action
+      ifelse([$7], , :, [$7])
+  else
+      AC_MSG_NOTICE(configuring [$1] for development with nano $NANO)
+      VERSION=[$3].[$4].[$5].$NANO
+      [$2]_RELEASE=0.`date +%Y%m%d.%H%M%S`
+      dnl execute action
+      ifelse([$8], , :, [$8])
+  fi
+
+  [$2]=$VERSION
+  AC_DEFINE_UNQUOTED([$2], "$[$2]", [Define the version])
+  AC_SUBST([$2])
+  AC_DEFINE_UNQUOTED([$2]_RELEASE, "$[$2]_RELEASE", [Define the release version])
+  AC_SUBST([$2]_RELEASE)
+
+  AC_SUBST([$2]_MAJOR)
+  AC_SUBST([$2]_MINOR)
+  AC_SUBST([$2]_MICRO)
+  AC_SUBST([$2]_NANO)
+  AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Define the package name])
+  AC_SUBST(PACKAGE)
+  AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Define the version])
+  AC_SUBST(VERSION)
+])

m4/tp-compiler-flag.m4

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+dnl A version of AS_COMPILER_FLAG that supports both C and C++.
+dnl Based on:
+
+dnl as-compiler-flag.m4 0.1.0
+dnl autostars m4 macro for detection of compiler flags
+dnl David Schleef <ds@schleef.org>
+dnl $Id: as-compiler-flag.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $
+
+dnl TP_COMPILER_FLAG(CFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
+dnl Tries to compile with the given CFLAGS and CXXFLAGS.
+dnl
+dnl Runs ACTION-IF-ACCEPTED if the compiler for the currently selected
+dnl AC_LANG can compile with the flags, and ACTION-IF-NOT-ACCEPTED otherwise.
+
+AC_DEFUN([TP_COMPILER_FLAG],
+[
+  AC_MSG_CHECKING([to see if compiler understands $1])
+
+  save_CFLAGS="$CFLAGS"
+  save_CXXFLAGS="$CXXFLAGS"
+  CFLAGS="$CFLAGS $1"
+  CXXFLAGS="$CXXFLAGS $1"
+
+  AC_TRY_COMPILE([ ], [], [flag_ok=yes], [flag_ok=no])
+  CFLAGS="$save_CFLAGS"
+  CXXFLAGS="$save_CXXFLAGS"
+
+  if test "X$flag_ok" = Xyes ; then
+    $2
+    true
+  else
+    $3
+    true
+  fi
+  AC_MSG_RESULT([$flag_ok])
+])
+
+dnl TP_ADD_COMPILER_FLAG(VARIABLE, CFLAGS)
+dnl Append CFLAGS to VARIABLE if the compiler supports them.
+AC_DEFUN([TP_ADD_COMPILER_FLAG],
+[
+  TP_COMPILER_FLAG([$2], [$1="[$]$1 $2"])
+])

m4/tp-compiler-warnings.m4

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+dnl TP_COMPILER_WARNINGS(VARIABLE, WERROR_BY_DEFAULT, DESIRABLE, UNDESIRABLE)
+dnl $1 (VARIABLE): the variable to put flags into
+dnl $2 (WERROR_BY_DEFAULT): a command returning true if -Werror should be the
+dnl     default
+dnl $3 (DESIRABLE): warning flags we want (e.g. all extra shadow)
+dnl $4 (UNDESIRABLE): warning flags we don't want (e.g.
+dnl   missing-field-initializers unused-parameter)
+AC_DEFUN([TP_COMPILER_WARNINGS],
+[
+  AC_REQUIRE([AC_ARG_ENABLE])dnl
+  AC_REQUIRE([AC_HELP_STRING])dnl
+  AC_REQUIRE([TP_COMPILER_FLAG])dnl
+
+  tp_warnings=""
+  for tp_flag in $3; do
+    TP_COMPILER_FLAG([-W$tp_flag], [tp_warnings="$tp_warnings -W$tp_flag"])
+  done
+
+  tp_error_flags="-Werror"
+  TP_COMPILER_FLAG([-Werror], [tp_werror=yes], [tp_werror=no])
+
+  for tp_flag in $4; do
+    TP_COMPILER_FLAG([-Wno-$tp_flag],
+      [tp_warnings="$tp_warnings -Wno-$tp_flag"])
+dnl Yes, we do need to use both -Wno-foo and -Wno-error=foo. Simon says:
+dnl     some warnings we explicitly don't want, like unused-parameter, but
+dnl     they're in -Wall. when a distro using cdbs compiles us, we have:
+dnl       -Werror -Wno-unused-parameter      -Wall
+dnl         ^ from us                         ^ from cdbs
+dnl     which turns -Wunused-parameter back on, in effect
+    TP_COMPILER_FLAG([-Wno-error=$tp_flag],
+      [tp_error_flags="$tp_error_flags -Wno-error=$tp_flag"], [tp_werror=no])
+  done
+
+  AC_ARG_ENABLE([Werror],
+    AC_HELP_STRING([--disable-Werror],
+      [compile without -Werror (normally enabled in development builds)]),
+    tp_werror=$enableval, :)
+
+  if test "x$tp_werror" = xyes && $2; then
+dnl We put -Wno-error=foo before -Wno-foo because clang interprets -Wall
+dnl -Werror -Wno-foo -Wno-error=foo as “make foo a non-fatal warning”, but does
+dnl what we want if you reverse them.
+    $1="$tp_error_flags $tp_warnings"
+  else
+    $1="$tp_warnings"
+  fi
+
+])

m4/tp-linker-flag.m4

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+dnl A version of AS_COMPILER_FLAG that supports linker flags
+dnl Based on:
+
+dnl as-compiler-flag.m4 0.1.0
+dnl autostars m4 macro for detection of compiler flags
+dnl David Schleef <ds@schleef.org>
+dnl $Id: as-compiler-flag.m4,v 1.1 2005/06/18 18:02:46 burgerman Exp $
+
+dnl TP_LINKER_FLAG(LDFLAGS, ACTION-IF-ACCEPTED, [ACTION-IF-NOT-ACCEPTED])
+dnl Tries to compile with the given LDFLAGS.
+dnl
+dnl Runs ACTION-IF-ACCEPTED if the compiler/linker for the currently selected
+dnl AC_LANG can compile with the flags, and ACTION-IF-NOT-ACCEPTED otherwise.
+dnl
+dnl Note that LDFLAGS are passed to the linker via the compiler, so you
+dnl should check for -Wl,--no-add-needed rather than --no-add-needed.
+
+AC_DEFUN([TP_LINKER_FLAG],
+[
+  AC_MSG_CHECKING([to see if compiler/linker understand $1])
+
+  save_LDFLAGS="$LDFLAGS"
+  LDFLAGS="$LDFLAGS $1"
+
+  AC_COMPILE_IFELSE(AC_LANG_SOURCE([]), [flag_ok=yes], [flag_ok=no])
+
+  LDFLAGS="$save_LDFLAGS"
+
+  if test "X$flag_ok" = Xyes ; then
+    $2
+    true
+  else
+    $3
+    true
+  fi
+  AC_MSG_RESULT([$flag_ok])
+])
+
+dnl TP_ADD_LINKER_FLAG(VARIABLE, LDFLAGS)
+dnl Append LDFLAGS to VARIABLE if the linker supports them.
+AC_DEFUN([TP_ADD_LINKER_FLAG],
+[
+  TP_LINKER_FLAG([$2], [$1="[$]$1 $2"])
+])