Bug#978821: gimp: ftbfs with autoconf 2.70

[Matthias Klose]

Package: src:gimp
Version: 2.10.20-2
Severity: normal
Tags: sid bookworm
User: doko at debian.org
Usertags: ftbfs-ac270

[This bug report is not targeted to the upcoming bullseye release]

The package fails to build in a test rebuild on at least amd64 with
autoconf 2.70, but succeeds to build with autoconf 2.69. The
severity of this report will be raised before the bookworm release,
so nothing has to be done for the bullseye release.

The full build log can be found at:
http://qa-logs.debian.net/2020/09/26.ac270/gimp_2.10.20-2_unstable_ac270.log
The last lines of the build log are at the end of this report.

To build with autoconf 2.70, please install the autoconf package from
experimental:  apt-get -t=experimental install autoconf 

[...]
./lib/autoconf/general.m4:2743: AC_TRY_COMPILE is expanded from...
m4macros/detectcflags.m4:4: GIMP_DETECT_CFLAGS is expanded from...
configure.ac:1147: the top level
configure.ac:1187: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:1187: You should run autoupdate.
./lib/autoconf/general.m4:2743: AC_TRY_COMPILE is expanded from...
m4macros/detectcflags.m4:4: GIMP_DETECT_CFLAGS is expanded from...
configure.ac:1187: the top level
configure.ac:2128: warning: The macro `AC_LANG_SAVE' is obsolete.
configure.ac:2128: You should run autoupdate.
./lib/autoconf/lang.m4:126: AC_LANG_SAVE is expanded from...
m4macros/alsa.m4:15: AM_PATH_ALSA is expanded from...
configure.ac:2128: the top level
configure.ac:2128: warning: The macro `AC_LANG_C' is obsolete.
configure.ac:2128: You should run autoupdate.
./lib/autoconf/c.m4:72: AC_LANG_C is expanded from...
m4macros/alsa.m4:15: AM_PATH_ALSA is expanded from...
configure.ac:2128: the top level
configure.ac:2128: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:2128: You should run autoupdate.
./lib/autoconf/general.m4:2743: AC_TRY_COMPILE is expanded from...
m4macros/alsa.m4:15: AM_PATH_ALSA is expanded from...
configure.ac:2128: the top level
configure.ac:2128: warning: The macro `AC_LANG_RESTORE' is obsolete.
configure.ac:2128: You should run autoupdate.
./lib/autoconf/lang.m4:135: AC_LANG_RESTORE is expanded from...
m4macros/alsa.m4:15: AM_PATH_ALSA is expanded from...
configure.ac:2128: the top level
configure.ac:2302: warning: The macro `AC_TRY_CPP' is obsolete.
configure.ac:2302: You should run autoupdate.
./lib/autoconf/general.m4:2658: AC_TRY_CPP is expanded from...
m4macros/pythondev.m4:219: AM_CHECK_PYTHON_HEADERS is expanded from...
configure.ac:2302: the top level
configure.ac:2338: warning: The macro `AC_TRY_COMPILE' is obsolete.
configure.ac:2338: You should run autoupdate.
./lib/autoconf/general.m4:2743: AC_TRY_COMPILE is expanded from...
m4macros/detectcflags.m4:4: GIMP_DETECT_CFLAGS is expanded from...
configure.ac:2338: the top level
configure.ac:246: installing './compile'
configure.ac:99: installing './missing'
app-tools/Makefile.am: installing './depcomp'
patching file ./ltmain.sh
Hunk #1 succeeded at 7312 (offset 92 lines).
Hunk #2 succeeded at 7710 (offset 95 lines).
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
   debian/rules override_dh_auto_configure
make[1]: Entering directory '/<<PKGBUILDDIR>>'
dh_auto_configure -- \
	--libdir=/usr/lib \
	--libexecdir=/usr/lib/gimp \
	--disable-static \
	--disable-python \
	--disable-check-update \
	--enable-default-binary \
	--enable-gtk-doc \
	--without-appdata-test \
	--without-webkit \
	--without-xvfb-run \
	--with-bug-report-url=https://www.debian.org/Bugs/Reporting
	./configure --build=x86_64-linux-gnu --prefix=/usr --includedir=\${prefix}/include --mandir=\${prefix}/share/man --infodir=\${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules --libdir=\${prefix}/lib/x86_64-linux-gnu --runstatedir=/run --disable-maintainer-mode --disable-dependency-tracking --libdir=/usr/lib --libexecdir=/usr/lib/gimp --disable-static --disable-python --disable-check-update --enable-default-binary --enable-gtk-doc --without-appdata-test --without-webkit --without-xvfb-run --with-bug-report-url=https://www.debian.org/Bugs/Reporting
./configure: line 2747: 5: Bad file descriptor
checking whether --prefix=/usr is declared... (cached) ./configure: line 2783: 5: Bad file descriptor
hB-includedir=/usr/include
./configure: line 2787: syntax error near unexpected token `}'
./configure: line 2787: `} # ac_fn_c_check_decl'
dh_auto_configure: error: ./configure --build=x86_64-linux-gnu --prefix=/usr --includedir=\${prefix}/include --mandir=\${prefix}/share/man --infodir=\${prefix}/share/info --sysconfdir=/etc --localstatedir=/var --disable-option-checking --disable-silent-rules --libdir=\${prefix}/lib/x86_64-linux-gnu --runstatedir=/run --disable-maintainer-mode --disable-dependency-tracking --libdir=/usr/lib --libexecdir=/usr/lib/gimp --disable-static --disable-python --disable-check-update --enable-default-binary --enable-gtk-doc --without-appdata-test --without-webkit --without-xvfb-run --with-bug-report-url=https://www.debian.org/Bugs/Reporting returned exit code 2
make[1]: *** [debian/rules:18: override_dh_auto_configure] Error 2
make[1]: Leaving directory '/<<PKGBUILDDIR>>'
make: *** [debian/rules:13: binary] Error 2
dpkg-buildpackage: error: debian/rules binary subprocess returned exit status 2