Portability Fixes

    - FreeBSD compability fixes of autoconf scripts by Ulrich Spoerlein 
    - Some hard to understand parts of autoconf scripts are rewriten. Again
    many thanks to Ulrich Spoerlein for pointing.
    

1 files changed, 118 insertions, 58 deletions

diff --git a/configure.in b/configure.in
index ce87ce8..4e6b9e7 100644
--- a/configure.in
+++ b/configure.in
@@ -29,21 +29,6 @@ AC_SUBST(LIBRCC_CVS_DATE)
 
 AM_INIT_AUTOMAKE($PACKAGE, $VERSION)
 
-AC_ARG_ENABLE( force-dynamic-engines,
-    [  --enable-force-dynamic-engines	force usage of dynamic engines],,
-    enable_force_dynamic_engines="no")
-
-AC_ARG_ENABLE( libtranslate,
-    [  --disable-libtranslate		disable usage of libtranslate],,
-    disable_libtranslate="yes")
-
-AC_ARG_ENABLE( bdb,
-    [  --disable-bdb			disable usage of berkeleydb for recodings caching],,
-    disable_bdb="yes")
-
-AC_ARG_ENABLE( force-system-iconv,
-    [  --enable-force-system-iconv	force usage of iconv library from glibc],,
-    enable_force_system_iconv="no")
 
 AC_PROG_CC
 AM_PROG_CC_C_O
@@ -60,8 +45,8 @@ AC_SUBST(pkgdatadir)
 
 CFLAGS="$CFLAGS -Wall -Wpointer-arith"
 if test ! -f /usr/include/iconv.h  -a -f /usr/local/include/iconv.h ; then
-    CFLAGS+=" -I/usr/local/include"
-    LIBS+=" -L/usr/local/lib"
+    CFLAGS="$CFLAGS -I/usr/local/include"
+    LIBS="$LIBS -L/usr/local/lib"
 fi
 
 dnl Checks for programs.
@@ -80,6 +65,9 @@ AC_TRY_COMPILE([#include <langinfo.h>],
     
 dnl Checks for libraries.
 
+dnl ***
+dnl *** LibXML2 (Mandatory)
+dnl ***
 AC_PATH_PROG(XML2_CONFIG, xml2-config, no)
 if test $XML2_CONFIG = no; then
     AC_MSG_ERROR(LibXML2 is required)
@@ -89,6 +77,9 @@ XML_INCLUDES="\`xml2-config --cflags\`"
 AC_SUBST(XML_LIBS)
 AC_SUBST(XML_INCLUDES)
 
+dnl ***
+dnl *** GTK1 (Optional)
+dnl ***
 AC_PATH_PROG(GTK_CONFIG, gtk-config, no)
 AM_CONDITIONAL(HAVE_GTK, [ test $GTK_CONFIG != no ])
 if test $GTK_CONFIG = no; then
@@ -103,9 +94,38 @@ fi
 AC_SUBST(GTK1_LIBS)
 AC_SUBST(GTK1_INCLUDES)
 
-PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.0.0, HAVE_GTK2=yes, HAVE_GTK2=no)
+dnl ***
+dnl *** GLIB 2.0 (Optional)
+dnl ***
+AC_ARG_ENABLE(glib2,
+	      [  --disable-glib2        disable glib2 [default=enabled]],,
+	      enable_glib2="yes")
+
+if test "x$enable_glib2" = "xyes"; then
+	PKG_CHECK_MODULES(GLIB2, glib-2.0 >= 2.0.0, HAVE_GLIB2=yes, HAVE_GLIB2=no)
+else
+        HAVE_GLIB2=no
+fi
+AM_CONDITIONAL(HAVE_GLIB2, [ test $HAVE_GLIB2 = yes ])
+
+
+dnl ***
+dnl *** GTK 2.0 (Optional)
+dnl ***
+AC_ARG_ENABLE(gtk2,
+	      [  --disable-gtk2        disable gtk2 [default=enabled]],,
+	      enable_gtk2="yes")
+
+if test "x$enable_gtk2" = "xyes"; then
+	PKG_CHECK_MODULES(GTK2, gtk+-2.0 >= 2.0.0, HAVE_GTK2=yes, HAVE_GTK2=no)
+else
+        HAVE_GTK2=no
+fi
 AM_CONDITIONAL(HAVE_GTK2, [ test $HAVE_GTK2 = yes ])
 
+dnl ***
+dnl *** Shared libraries support
+dnl ***
 AC_CHECK_HEADER(dlfcn.h, [AC_CHECK_LIB(dl, dlopen, [
     AC_DEFINE(HAVE_DLOPEN,1,[Defines if dlopen is available])
     DLOPEN_LIBS="-ldl"
@@ -123,25 +143,35 @@ AC_CHECK_HEADER(dlfcn.h, [AC_CHECK_LIB(dl, dlopen, [
 ])])
 
 
+dnl ***
+dnl *** Find IConv library (External / GLibc embeded)
+dnl ***
 EXTRA_LIBS=""
-EXTERNAL_ICONV=no
 HAVE_LIBCHARSET=no
+EXTERNAL_ICONV=no
+
+AC_ARG_ENABLE( force-system-iconv,
+    [  --enable-force-system-iconv	force usage of iconv library from glibc],,
+    enable_force_system_iconv="no")
 
 if test "x$enable_force_system_iconv" != "xyes"; then
-AC_CHECK_LIB(iconv, iconv_open, [
-    EXTERNAL_ICONV=yes
-    EXTRA_LIBS+=" -liconv"
-])
-AC_CHECK_HEADER(libcharset.h, [AC_CHECK_LIB(charset, locale_charset, [
+    AC_CHECK_LIB(iconv, iconv_open, [
+	EXTERNAL_ICONV=yes
+	EXTRA_LIBS="$EXTRA_LIBS -liconv"
+    ])
+    AC_CHECK_HEADER(libcharset.h, [AC_CHECK_LIB(charset, locale_charset, [
 	AC_DEFINE(HAVE_LIBCHARSET,1,[Defines if libRCD is available])
 	HAVE_LIBCHARSET=yes
-	EXTRA_LIBS+=" -lcharset"
-])])
+	EXTRA_LIBS="$EXTRA_LIBS -lcharset"
+    ])])
 fi
 AM_CONDITIONAL(HAVE_LIBCHARSET, [ test "x$HAVE_LIBCHARSET" = "xyes" ])
 AC_SUBST(EXTRA_LIBS)
 
 
+dnl ***
+dnl *** Encoding detection engines: LibRCD, Enca, LibGUESS
+dnl ***
 RCD_LIBS=""
 RCD_INCLUDES=""
 HAVE_RCD=no
@@ -152,19 +182,23 @@ LIBGUESS_LIBS=""
 LIBGUESS_INCLUDES=""
 HAVE_LIBGUESS=no
 
+AC_ARG_ENABLE( force-dynamic-engines,
+    [  --enable-force-dynamic-engines	force usage of dynamic engines],,
+    enable_force_dynamic_engines="no")
+
 if test "x$enable_force_dynamic_engines" != "xyes"; then
-AC_CHECK_HEADER(librcd.h, [AC_CHECK_LIB(rcd, rcdGetRussianCharset, [
+    AC_CHECK_HEADER(librcd.h, [AC_CHECK_LIB(rcd, rcdGetRussianCharset, [
 	AC_DEFINE(HAVE_RCD,1,[Defines if libRCD is available])
 	RCD_LIBS="-lrcd"
 	RCD_INCLUDES=""
 	HAVE_RCD=yes
-])])
-AC_CHECK_HEADER(enca.h, [AC_CHECK_LIB(enca, enca_analyse, [ 
+    ])])
+    AC_CHECK_HEADER(enca.h, [AC_CHECK_LIB(enca, enca_analyse, [ 
 	AC_DEFINE(HAVE_ENCA,1,[Defines if enca is available])
 	ENCA_LIBS="-lenca"
 	ENCA_INCLUDES=""
 	HAVE_ENCA=yes
-])])
+    ])])
 fi
 
 AC_CHECK_HEADER(libguess.h, [AC_CHECK_LIB(guess, guess_jp, [ 
@@ -204,12 +238,14 @@ fi
 AC_SUBST(DLOPEN_LIBS)
 AC_SUBST(DLOPEN_INCLUDES)
 
+dnl ***
+dnl *** BerkeleyDB
+dnl ***
+AC_ARG_ENABLE( bdb,
+    [  --disable-bdb			disable support of recodings caching using BerkeleyDB],,
+    enable_bdb="yes")
 
-if test "x$disable_bdb" != "xyes"; then
-    BDB_LIBS=""
-    BDB_INCLUDES=""
-    HAVE_BDB=no
-else
+if test "x$enable_bdb" = "xyes"; then
     AX_PATH_BDB([4],[
 	BDB_LIBS="$BDB_LDFLAGS $BDB_LIBS"
 	BDB_INCLUDES="$BDB_CPPFLAGS"
@@ -219,41 +255,51 @@ else
 	BDB_INCLUDES=""
 	HAVE_BDB=no
     ])
+else
+    BDB_LIBS=""
+    BDB_INCLUDES=""
+    HAVE_BDB=no
 fi
 AC_SUBST(BDB_LIBS)
 AC_SUBST(BDB_INCLUDES)
 
-PKG_CHECK_MODULES(GLIB2, glib-2.0 >= 2.0.0, HAVE_GLIB2=yes, HAVE_GLIB2=no)
-AM_CONDITIONAL(HAVE_GLIB2, [ test $HAVE_GLIB2 = yes ])
+dnl ***
+dnl *** LibTranslate (Optional)
+dnl ***
+AC_ARG_ENABLE( libtranslate,
+    [  --disable-libtranslate		disable usage of libtranslate],,
+    enable_libtranslate="yes")
 
+if test "x$enable_libtranslate" = "xyes"; then
+    PKG_CHECK_MODULES(LIBTRANSLATE, [libtranslate], [
+	HAVE_LIBTRANSLATE=yes
+    ],[ 
+	HAVE_LIBTRANSLATE=no
+    ])
 
-if test "x$disable_libtranslate" != "xyes"; then
+    if test $HAVE_LIBTRANSLATE = yes; then
+	AC_DEFINE(HAVE_LIBTRANSLATE,1,[Defines if libtranslate is available])
+	AC_CHECK_LIB(translate, translate_session_timed_translate_text, [
+	    HAVE_LIBTRANSLATE_TIMED_TRANSLATE=yes
+    	    AC_DEFINE(HAVE_LIBTRANSLATE_TIMED_TRANSLATE,1,[Defines if libtranslate has time limited translate])
+	],[
+	    HAVE_LIBTRANSLATE_TIMED_TRANSLATE=no
+	])
+    else
+	HAVE_LIBTRANSLATE_TIMED_TRANSLATE=no
+    fi
+else
     HAVE_LIBTRANSLATE=no
     HAVE_LIBTRANSLATE_TIMED_TRANSLATE=no
     LIBTRANSLATE_LIBS=""
     LIBTRANSLATE_CFLAGS=""
     AC_SUBST(LIBTRANSLATE_LIBS)
     AC_SUBST(LIBTRANSLATE_CFLAGS)
-else
-PKG_CHECK_MODULES(LIBTRANSLATE, [libtranslate], [
-    HAVE_LIBTRANSLATE=yes
-],[ 
-    HAVE_LIBTRANSLATE=no
-])
-
-if test $HAVE_LIBTRANSLATE = yes; then
-    AC_DEFINE(HAVE_LIBTRANSLATE,1,[Defines if libtranslate is available])
-    AC_CHECK_LIB(translate, translate_session_timed_translate_text, [
-	HAVE_LIBTRANSLATE_TIMED_TRANSLATE=yes
-    	AC_DEFINE(HAVE_LIBTRANSLATE_TIMED_TRANSLATE,1,[Defines if libtranslate has time limited translate])
-    ],[
-	HAVE_LIBTRANSLATE_TIMED_TRANSLATE=no
-    ])
-else
-    HAVE_LIBTRANSLATE_TIMED_TRANSLATE=no
-fi
 fi
 
+dnl ***
+dnl *** Aspell (Optional)
+dnl ***
 AM_PATH_ASPELL([
     AC_DEFINE(HAVE_ASPELL,1,[Defines if aspell is available])
     HAVE_ASPELL=yes
@@ -262,7 +308,17 @@ AM_PATH_ASPELL([
 ])
 
 
-PTHREAD_LIBS=error
+dnl ***
+dnl *** Threading library
+dnl ***
+AC_MSG_CHECKING([for PTHREAD_LIBS])
+if test "x$PTHREAD_LIBS" = "x"; then
+  PTHREAD_LIBS=error
+else
+  AC_MSG_RESULT([$PTHREAD_LIBS])
+fi
+
+if test "x$PTHREAD_LIBS" = "xerror"; then
 AC_EGREP_CPP(yes,[
 #if (defined(__FreeBSD_cc_version) && __FreeBSD_cc_version <= 500001) || defined(__OpenBSD__)
 	  yes
@@ -271,6 +327,7 @@ AC_EGREP_CPP(yes,[
 	PTHREAD_CFLAGS="-D_THREAD_SAFE" 
 	PTHREAD_LIBS="-pthread"
 )
+fi
 if test "x$PTHREAD_LIBS" = "xerror"; then
 	AC_CHECK_LIB(pthread, pthread_mutex_lock, PTHREAD_LIBS="-lpthread")
 fi
@@ -308,8 +365,11 @@ AC_CHECK_FUNCS(strcasecmp strncasecmp strdup strnlen)
 
 AC_OUTPUT(src/Makefile engines/Makefile external/Makefile ui/Makefile examples/Makefile Makefile librcc.spec)
 
+dnl ***
+dnl *** Data directory
+dnl ***
 rccdir=${pkgdatadir}
-while expr ${rccdir:0:1} == '$' &>/dev/null; do
+while expr "${rccdir}" : "\\\$" >/dev/null; do
     rccdir=`eval echo $rccdir`
 done