[yelp-tools] configure.ac: Check for xmllint and xsltproc by binaries

[Shaun McCance <shaunm src gnome org>]

commit 319f5e3580363d0b6f6dc389b40172f52b31bc10
Author: Shaun McCance <shaunm gnome org>
Date:   Sun Jan 16 18:31:54 2011 -0500

    configure.ac: Check for xmllint and xsltproc by binaries
    
    Use pkg-config often means you need to installed devel packages
    containing headers and such. But the binaries are often in the
    base packages. No need to require devel.

 configure.ac |   18 ++++++++++++++++--
 1 files changed, 16 insertions(+), 2 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 900b033..4638d08 100644
--- a/configure.ac
+++ b/configure.ac
@@ -18,10 +18,24 @@ AC_PROG_LN_S
 
 AM_PATH_PYTHON([2.4])
 
+AC_CHECK_PROG(XMLLINT, xmllint, xmllint)
+if test x"$XMLLINT" = x; then
+  AC_MSG_ERROR([xmllint not found])
+fi
+if [ `$XMLLINT --version 2>&1 | head -n1 | cut -d' ' -f5` -lt 20612 ]; then
+   AC_MSG_ERROR([xmllint too old; 2.6.12 required])
+fi
+
+AC_CHECK_PROG(XSLTPROC, xsltproc, xsltproc)
+if test x"$XSLTPROC" = x; then
+  AC_MSG_ERROR([xsltproc not found])
+fi
+if [ `$XSLTPROC --version 2>&1 | head -n1 | cut -d' ' -f5` -lt 10108 ]; then
+   AC_MSG_ERROR([xsltproc too old; 1.1.8 required])
+fi
+
 PKG_CHECK_MODULES(GNOME_DOC_UTILS,
 [
-	libxml-2.0 >= 2.6.12
-	libxslt    >= 1.1.8
 	yelp-xsl
 ])