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

["Herbert J. Skuhra" <h.skuhra@gmail.com>]

On Thu, 31 Dec 2015 09:30:07 +0100,
YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> wrote:
> 
> >>>>> On Thu, 31 Dec 2015 09:05:50 +0100, "Herbert J. Skuhra" <h.skuhra@gmail.com> said:
> 
> >> I'm using OS X 10.10.5 and 10.11.2 without command line developer
> >> tools installed on my laptop.  Could you show me the output of the
> >> following commands?
> >> 
> >> $ xcrun --show-sdk-path
> >> $ xcrun --sdk macosx --show-sdk-path
> 
> > Both commands output
> 
> > /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk
> 
> These commands seem to work correctly.  Do you happen to have (bogus)
> /usr/include?  Usually that does not happen on OS X 10.11 because of
> the System Integrity Protection, but you can disable it.
> 
> The Mac port has been using this code for one year
> (http://lists.gnu.org/archive/html/emacs-devel/2014-11/msg01719.html),
> but I haven't received any bug reports about it.  If you don't have
> /usr/include, then please send me config.log personally.

How about?

diff --git a/configure.ac b/configure.ac
index 9c783e6..d9e75e3 100644
--- a/configure.ac
+++ b/configure.ac
@@ -3610,8 +3610,6 @@ AC_SUBST(XFIXES_LIBS)
 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
 HAVE_LIBXML2=no
 if test "${with_xml2}" != "no"; then
-  ### I'm not sure what the version number should be, so I just guessed.
-  EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
   # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
   if test "${HAVE_LIBXML2}" != "yes" && test "$opsys" = "darwin"; then
     SAVE_CPPFLAGS="$CPPFLAGS"
@@ -3633,6 +3631,8 @@ if test "${with_xml2}" != "no"; then
       LIBXML2_LIBS="-lxml2"
     fi
   fi
+  ### I'm not sure what the version number should be, so I just guessed.
+  EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
   if test "${HAVE_LIBXML2}" = "yes"; then
     if test "${opsys}" != "mingw32"; then
       AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no,

--
Herbert