AC_LIB_ID3([ACTION-IF-TRUE], [ACTION-IF-FALSE])
, 

2005年04月18日

Oskar Liljeblad <oskar@osk.mine.nu>

gpl2

cryp.to ac-archive's Installed Packages (released)

This macro will check for the existence of id3lib (http://id3lib.sourceforge.net/). It does this by checking for the header file id3.h and the id3 library object file. A --with-id3lib option is supported as well. The following output variables are set with AC_SUBST:

 ID3_CPPFLAGS
 ID3_LDFLAGS
 ID3_LIBS

You can use them like this in Makefile.am:

 AM_CPPFLAGS = $(ID3_CPPFLAGS)
 AM_LDFLAGS = $(ID3_LDFLAGS)
 program_LDADD = $(ID3_LIBS)

Additionally, the C preprocessor symbol HAVE_ID3LIB will be defined with AC_DEFINE if id3lib is available.

AC_DEFUN([AC_LIB_ID3], [
 AH_TEMPLATE([HAVE_ID3LIB], [Define if id3lib is available])
 AC_ARG_WITH(id3lib, [ --with-id3lib=DIR prefix for id3 library files and headers], [
 if test "$withval" = "no"; then
 ac_id3_path=
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 elif test "$withval" = "yes"; then
 ac_id3_path=/usr
 else
 ac_id3_path="$withval"
 fi
 ],[ac_id3_path=/usr])
 if test "$ac_id3_path" != ""; then
 saved_CPPFLAGS="$CPPFLAGS"
 CPPFLAGS="$CPPFLAGS -I$ac_id3_path/include"
 AC_CHECK_HEADER([id3.h], [
 saved_LDFLAGS="$LDFLAGS"
 LDFLAGS="$LDFLAGS -L$ac_id3_path/lib"
 AC_CHECK_LIB(id3, ID3Tag_New, [
 AC_SUBST(ID3_CPPFLAGS, [-I$ac_id3_path/include])
 AC_SUBST(ID3_LDFLAGS, [-L$ac_id3_path/lib])
 AC_SUBST(ID3_LIBS, [-lid3])
	AC_DEFINE([HAVE_ID3LIB])
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 ], [
 :
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 ])
 LDFLAGS="$saved_LDFLAGS"
 ], [
 AC_MSG_RESULT([not found])
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 ])
 CPPFLAGS="$saved_CPPFLAGS"
 fi
])