[Emacs-diffs] emacs-25 89e7483: * configure.ac: Find libxml2 headers in Xcode SDK dir on Darwin.

[YAMAMOTO Mitsuharu]

branch: emacs-25
commit 89e7483d9f30153329335b6b8cd97d96a06a8897
Author: YAMAMOTO Mitsuharu <address@hidden>
Commit: YAMAMOTO Mitsuharu <address@hidden>

    * configure.ac: Find libxml2 headers in Xcode SDK dir on Darwin.
---
 configure.ac |    8 ++++++++
 1 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/configure.ac b/configure.ac
index 4233efa..9c783e6 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3615,6 +3615,14 @@ if test "${with_xml2}" != "no"; then
   # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
   if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
     SAVE_CPPFLAGS="$CPPFLAGS"
+    if test -z "$xcsdkdir" -a -n "$XCRUN" -a ! -d /usr/include; then
+      dnl /usr/include is not found.  Try Xcode SDK dir if it is sane.
+      xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
+      case $xcsdkdir in
+       *[[\\\"\#\$\&\'\`$am_lf\ \      ]]*)
+       xcsdkdir="" ;;
+      esac
+    fi
     CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
     AC_CHECK_HEADER(libxml/HTMLparser.h,
       [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,