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 08:16:03 +0100,
YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> wrote:
> 
> >>>>> On Thu, 31 Dec 2015 07:31:11 +0100, "Herbert J. Skuhra" <h.skuhra@gmail.com> said:
> 
> > On Thu, 31 Dec 2015 02:38:24 +0100,
> > YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp> wrote:
> >> 
> >> branch: emacs-25
> >> commit 89e7483d9f30153329335b6b8cd97d96a06a8897
> >> Author: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> >> Commit: YAMAMOTO Mitsuharu <mituharu@math.s.chiba-u.ac.jp>
> >> 
> >> * 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, ,
> 
> > Hi,
> 
> > should this also work on MacOS X 10.11? Because I still get:
> 
> > CC       xml.o
> > xml.c:23:10: fatal error: 'libxml/tree.h' file not found
> > #include <libxml/tree.h>
> >          ^
> > 1 error generated.
> > make[1]: *** [xml.o] Error 1
> > make: *** [src] Error 2
> 
> > It works if I use
> 
> > CPPFLAGS='-I/usr/local/Cellar/libxml2/2.9.3/include/libxml2' and
> > LDFLAGS='-L/usr/local/Cellar/libxml2/2.9.3/lib'.
> 
> > or
> 
> > CPPFLAGS='-I/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/libxml2'
> 
> 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

--
Herbert