[bug #52793] autoreconf fails

URL:
  <http://savannah.gnu.org/bugs/?52793>

                 Summary: autoreconf fails
                 Project: GNUstep
            Submitted by: yavor
            Submitted on: Wed 03 Jan 2018 02:11:55 PM EET
                Category: Backend
                Severity: 3 - Normal
              Item Group: Bug
                  Status: None
                 Privacy: Public
             Assigned to: None
             Open/Closed: Open
         Discussion Lock: Any

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Details:

This is similar to Bug#52779 but not identical, so I'm reporting it as a
separate bug.


$ autoreconf -fi
configure.ac:275: error: possibly undefined macro: PKG_XFT
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:455: error: possibly undefined macro: PKG_CAIRO
configure.ac:457: error: possibly undefined macro: PKG_CAIRO_FT
configure.ac:459: error: possibly undefined macro: PKG_CAIRO_XLIB
configure.ac:463: error: possibly undefined macro: PKG_CAIRO_GLITZ
configure.ac:465: error: possibly undefined macro: PKG_FONTCONFIG
autoreconf: /usr/bin/autoconf failed with exit status: 1
$ cp ../libs-gui/config/pkg.m4 .
$ rm aclocal.m4
$ autoreconf -fi
configure.ac:275: error: possibly undefined macro: PKG_XFT
      If this token and others are legitimate, please use m4_pattern_allow.
      See the Autoconf documentation.
configure.ac:455: error: possibly undefined macro: PKG_CAIRO
configure.ac:457: error: possibly undefined macro: PKG_CAIRO_FT
configure.ac:459: error: possibly undefined macro: PKG_CAIRO_XLIB
configure.ac:463: error: possibly undefined macro: PKG_CAIRO_GLITZ
configure.ac:465: error: possibly undefined macro: PKG_FONTCONFIG
autoreconf: /usr/bin/autoconf failed with exit status: 1


This is because newer pkg.m4 macros now use m4_pattern_forbid to reserve their
own namespace.  Proposed patch attached.

P.S. PKG_PROG_PKG_CONFIG is AC_REQUIREd by PKG_CHECK_MODULES and generally
shouldn't be necessary to be called explicitly.  However, the first call to
PKG_CHECK_MODULES (for xext) is conditional and that's why the macro is not
expanded and later it fails to detect cairo.  If you use AS_IF instead of
plain "if" autoconf would be able to "see" that and the AC_REQUIRE machinery
would work.  So, either an explicit call to PKG_PROG_PKG_CONFIG is neeeded, or
rewrite the if statement as

AS_IF([test "$HAVE_LIBXext" = no], [PKG_CHECK_MODULES([XEXT], [xext])])



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File Attachments:


-------------------------------------------------------
Date: Wed 03 Jan 2018 02:11:55 PM EET  Name: 0001-Fix-autoreconf-failure.patch
 Size: 101KiB   By: yavor

<http://savannah.gnu.org/bugs/download.php?file_id=42799>

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