From cedc8081d6804399d7204c6e1677319e0eb12adf Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Sl=C3=A1vek=20Banko?= <slavek.banko@axis.cz>
Date: Wed, 12 Feb 2020 16:52:22 +0100
Subject: [PATCH] Add libxml2 and libxslt detection using pkg-config.
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Signed-off-by: Slávek Banko <slavek.banko@axis.cz>
(cherry picked from commit b2a61b75bb5671b3aca0f9dbfe078de2a464a982)
---
 filters/xsltfilter/configure.in.in | 113 +++++++++++++++++------------
 1 file changed, 66 insertions(+), 47 deletions(-)

diff --git a/filters/xsltfilter/configure.in.in b/filters/xsltfilter/configure.in.in
index 5480adc0f..b4ea41f8a 100644
--- a/filters/xsltfilter/configure.in.in
+++ b/filters/xsltfilter/configure.in.in
@@ -1,62 +1,81 @@
+KDE_PKG_CHECK_MODULES(LIBXML, libxml-2.0,
+    have_libxml=yes, have_libxml=no)
 
-KDE_FIND_PATH(xml2-config, XML_CONFIG, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [
-  AC_MSG_WARN([Could not find libxml2 anywhere, check ftp://xmlsoft.org/ for libxml >= 2.4.8. (we also keep a version of it in tdesupport for CVS users' convience)])
-  HELP_SUBDIR=
-])
-
-if test -n "$XML_CONFIG"; then
-  vers=`$XML_CONFIG --version 2>/dev/null | $SED -e 's/libxml //' | $AWK 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
-  if test -n "$vers" && test "$vers" -ge 2004008
-  then
-     LIBXML_LIBS="`$XML_CONFIG --libs`"
-     LIBXML_RPATH=
-     for args in $LIBXML_LIBS; do
-	  case $args in
-	    -L*)
-  	       LIBXML_RPATH="$LIBXML_RPATH $args"
- 	       ;;
-          esac
-     done
-     LIBXML_RPATH=`echo $LIBXML_RPATH | $SED -e "s/-L/-R/g"`
-     LIBXML_CFLAGS="`$XML_CONFIG --cflags`"
+if test "x$have_libxml" != "xyes"; then
+  KDE_FIND_PATH(xml2-config, XML_CONFIG, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [
+    AC_MSG_WARN([Could not find libxml2 anywhere, check ftp://xmlsoft.org/ for libxml >= 2.4.8. (we also keep a version of it in tdesupport for CVS users' convience)])
+    HELP_SUBDIR=
+  ])
 
-     KDE_FIND_PATH(xmllint, XMLLINT, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [XMLLINT=""])
-     AC_DEFINE_UNQUOTED(XMLLINT, "$XMLLINT", [Defines the executable of xmllint])
-  else
-     AC_MSG_WARN([You need at least libxml 2.4.8])
-     HELP_SUBDIR=
+  if test -n "$XML_CONFIG"; then
+    vers=`$XML_CONFIG --version 2>/dev/null | $SED -e 's/libxml //' | $AWK 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+    if test -n "$vers" && test "$vers" -ge 2004008
+    then
+       LIBXML_LIBS="`$XML_CONFIG --libs`"
+       LIBXML_CFLAGS="`$XML_CONFIG --cflags`"
+       have_libxml=yes
+    else
+       AC_MSG_WARN([You need at least libxml 2.4.8])
+       HELP_SUBDIR=
+    fi
   fi
 fi
 
-KDE_FIND_PATH(xslt-config, XSLT_CONFIG, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [
-  AC_MSG_WARN([Could not find libxslt anywhere, check ftp://xmlsoft.org/ for libxslt >= 1.0.7. (we also keep a version of it in tdesupport for CVS users' convience)])
-  HELP_SUBDIR=
-])
+if test "x$have_libxml" = "xyes"; then
+  KDE_FIND_PATH(xmllint, XMLLINT, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [XMLLINT=""])
+  AC_DEFINE_UNQUOTED(XMLLINT, "$XMLLINT", [Defines the executable of xmllint])
+fi
 
-if test -n "$XSLT_CONFIG"; then
-   vers=`$XSLT_CONFIG --version 2>/dev/null | $AWK 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
-   if test -n "$vers" && test "$vers" -ge 1000007; then
-     LIBXSLT_LIBS="`$XSLT_CONFIG --libs`"
-     LIBXSLT_RPATH=
-     for args in $LIBXSLT_LIBS; do
-       case $args in
-        -L*)
-  	  LIBXSLT_RPATH="$LIBXSLT_RPATH $args"
- 	  ;;
-       esac
-     done
-     LIBXSLT_RPATH=`echo $LIBXSLT_RPATH | $SED -e "s/-L/-R/g"`
-     LIBXSLT_CFLAGS="`$XSLT_CONFIG --cflags`"
 
-   else
-     AC_MSG_WARN([You need at least libxslt 1.0.7])
-     HELP_SUBDIR=
-   fi
+KDE_PKG_CHECK_MODULES(LIBXSLT, libxslt,
+    have_libxslt=yes, have_libxslt=no)
+
+if test "x$have_libxslt" != "xyes"; then
+  KDE_FIND_PATH(xslt-config, XSLT_CONFIG, [${prefix}/bin ${exec_prefix}/bin /usr/local/bin /opt/local/bin], [
+    AC_MSG_WARN([Could not find libxslt anywhere, check ftp://xmlsoft.org/ for libxslt >= 1.0.7. (we also keep a version of it in tdesupport for CVS users' convience)])
+    HELP_SUBDIR=
+  ])
+
+  if test -n "$XSLT_CONFIG"; then
+     vers=`$XSLT_CONFIG --version 2>/dev/null | $AWK 'BEGIN { FS = "."; } { printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+     if test -n "$vers" && test "$vers" -ge 1000007; then
+       LIBXSLT_LIBS="`$XSLT_CONFIG --libs`"
+       LIBXSLT_CFLAGS="`$XSLT_CONFIG --cflags`"
+       have_libxslt=yes
+     else
+       AC_MSG_WARN([You need at least libxslt 1.0.7])
+       HELP_SUBDIR=
+     fi
+  fi
 fi
 
+
 if test ! "$USE_RPATH" = "yes"; then
     LIBXSLT_RPATH=
     LIBXML_RPATH=
+else
+  if test "x$have_libxml" = "xyes"; then
+    LIBXML_RPATH=
+    for args in $LIBXML_LIBS; do
+      case $args in
+        -L*)
+          LIBXML_RPATH="$LIBXML_RPATH $args"
+          ;;
+      esac
+    done
+    LIBXML_RPATH=`echo $LIBXML_RPATH | $SED -e "s/-L/-R/g"`
+  fi
+  if test "x$have_libxslt" = "xyes"; then
+    LIBXSLT_RPATH=
+    for args in $LIBXSLT_LIBS; do
+      case $args in
+        -L*)
+          LIBXSLT_RPATH="$LIBXSLT_RPATH $args"
+          ;;
+      esac
+    done
+    LIBXSLT_RPATH=`echo $LIBXSLT_RPATH | $SED -e "s/-L/-R/g"`
+  fi
 fi
 
 AC_SUBST(LIBXSLT_LIBS)