The problem seems to stem from the fact that the use of the AC_EGREP_CPP macro in conjunction with a fairly new version of GCC, 5.4.0 in my case. The newer versions of GCC's C preprocessor add things such as newlines and other characters in uncomfortable places in their output, which will render any grepping on it quite futile. As a workaround, slapping the -P switch into CPPFLAGS makes it build just fine. There's a thread on the autoconf mailing list discussing this new GCC output without a whole lot of activity: https://www.mail-archive.com/bug-autoconf@gnu.org/msg04157.html Reproducible: Always Steps to Reproduce: 1. # gcc-config x86_64-pc-linux-gnu-5.4.0 2. # emerge subversion 3. You're there! Actual Results: Build fails. Expected Results: Build succeeds. The offending file in SVN's build system is 'subversion-1.9.5/build/ac-macros/swig.m4'. Here's an example of the difference in cpp's output with and without -P: % echo '#include <apr-1/apr.h>'$'\n''HELLO APR_INT64_T_FMT WORLD' | cpp typedef apr_uint64_t apr_uintptr_t; /* <snip> */ # 2 "<stdin>" HELLO # 2 "<stdin>" 3 4 "ld" # 2 "<stdin>" WORLD % echo '#include <apr-1/apr.h>'$'\n''HELLO APR_INT64_T_FMT WORLD' | cpp -P /* <snip> */ typedef ino_t apr_ino_t; typedef apr_uint64_t apr_uintptr_t; HELLO "ld" WORLD
Please provide emerge --info and attach a full build log.
% emerge --info Portage 2.2.27-multilib (python 2.7.13-final-0, default/linux/amd64/13.0/desktop/plasma/systemd, gcc-5.4.0, glibc-2.24-r1, 4.8.0-pf8 x86_64) ================================================================= System uname: Linux-4.8.0-pf8-x86_64-AMD_FX-tm-8320_Eight-Core_Processor-with-gentoo-2.3 KiB Mem: 12203832 total, 738876 free KiB Swap: 52436060 total, 51623892 free Timestamp of repository gentoo: Wed, 03 May 2017 11:45:01 +0000 sh bash 4.4_p12 ld GNU ld-versio (Gentoo 2.27 p1.0) 2.27 ccache version 3.3.4 [disabled] app-shells/bash: 4.4_p12::gentoo dev-java/java-config: 2.2.0-r3::gentoo dev-lang/perl: 5.24.1-r1::gentoo dev-lang/python: 2.7.13::gentoo, 3.4.6::gentoo dev-util/ccache: 3.3.4::gentoo dev-util/cmake: 3.8.1::gentoo dev-util/pkgconfig: 0.29.2::gentoo sys-apps/baselayout: 2.3::gentoo sys-apps/openrc: 0.25::gentoo sys-apps/sandbox: 2.10-r4::gentoo sys-devel/autoconf: 2.13::gentoo, 2.69-r3::gentoo sys-devel/automake: 1.11.6-r2::gentoo, 1.12.6::gentoo, 1.13.4-r1::gentoo, 1.14.1-r1::gentoo, 1.15-r2::gentoo sys-devel/binutils: 2.25.1-r1::gentoo, 2.26.1::gentoo, 2.27::gentoo sys-devel/gcc: 4.6.4::gentoo, 4.7.3-r1::gentoo, 4.8.3::gentoo, 4.9.3::gentoo, 4.9.4::gentoo, 5.3.0::gentoo, 5.4.0::gentoo, 6.3.0::gentoo sys-devel/gcc-config: 1.8-r1::gentoo sys-devel/libtool: 2.4.6-r4::gentoo sys-devel/make: 4.2.1-r1::gentoo sys-kernel/linux-headers: 4.10::gentoo (virtual/os-headers) sys-libs/glibc: 2.24-r1::gentoo Repositories: gentoo location: /usr/portage sync-type: rsync sync-uri: rsync://rsync.de.gentoo.org/gentoo-portage/ priority: -1000 local location: /home/meklu/portage/local masters: gentoo priority: 0 dstien location: /home/meklu/portage/dstien masters: gentoo priority: 1 nikos-gentoo-overlay location: /home/meklu/portage/nikob masters: gentoo priority: 2 bitcoin location: /var/lib/layman/bitcoin masters: gentoo priority: 50 gamerlay location: /var/lib/layman/gamerlay masters: gentoo priority: 50 kde location: /var/lib/layman/kde masters: gentoo priority: 50 mekoverlay location: /var/lib/layman/mekoverlay masters: gentoo priority: 50 multilib-portage location: /var/lib/layman/multilib-portage masters: gentoo priority: 50 multimedia location: /var/lib/layman/multimedia masters: gentoo priority: 50 proaudio location: /var/lib/layman/proaudio masters: gentoo priority: 50 qt location: /var/lib/layman/qt masters: gentoo priority: 50 sunrise location: /var/lib/layman/sunrise masters: gentoo priority: 50 systemd location: /var/lib/layman/systemd masters: gentoo priority: 50 systemd-love location: /var/lib/layman/systemd-love masters: gentoo priority: 50 tox-overlay location: /var/lib/layman/tox-overlay masters: gentoo priority: 50 x11 location: /var/lib/layman/x11 masters: gentoo priority: 50 ACCEPT_KEYWORDS="amd64 ~amd64" ACCEPT_LICENSE="*" CBUILD="x86_64-pc-linux-gnu" CFLAGS="-O2" CHOST="x86_64-pc-linux-gnu" CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt /usr/share/themes/oxygen-gtk/gtk-2.0 /var/lib/hsqldb" CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /etc/php/apache2-php5.6/ext-active/ /etc/php/apache2-php7.0/ext-active/ /etc/php/apache2-php7.1/ext-active/ /etc/php/cgi-php5.6/ext-active/ /etc/php/cgi-php7.0/ext-active/ /etc/php/cgi-php7.1/ext-active/ /etc/php/cli-php5.6/ext-active/ /etc/php/cli-php7.0/ext-active/ /etc/php/cli-php7.1/ext-active/ /etc/revdep-rebuild /etc/sandbox.d /etc/terminfo /etc/texmf/language.dat.d /etc/texmf/language.def.d /etc/texmf/updmap.d /etc/texmf/web2c" CXXFLAGS="-O2" DISTDIR="/usr/portage/distfiles" FCFLAGS="-O2 -pipe" FEATURES="assume-digests binpkg-logs config-protect-if-modified distlocks ebuild-locks fixlafiles force-multilib merge-sync news parallel-fetch preserve-libs protect-owned sandbox sfperms splitdebug strict unknown-features-warn unmerge-logs unmerge-orphans userfetch usersync xattr" FFLAGS="-O2 -pipe" GENTOO_MIRRORS="rsync://trumpetti.atm.tut.fi/gentoo/" LANG="fi_FI.UTF-8" LC_ALL="fi_FI.UTF-8" LDFLAGS="-Wl,-O1 -Wl,--as-needed" MAKEOPTS="-j6" PKGDIR="/usr/portage/packages" PORTAGE_CONFIGROOT="/" PORTAGE_RSYNC_OPTS="--recursive --links --safe-links --perms --times --omit-dir-times --compress --force --whole-file --delete --stats --human-readable --timeout=180 --exclude=/distfiles --exclude=/local --exclude=/packages --exclude=/.git" PORTAGE_TMPDIR="/var/tmp" USE="32bit 3dnowprefetch X a52 aac aalib abm acl acpi aes alsa amd64 amr aperfmperf apic arat avx bash-completion berkdb bluetooth bluray bmi1 branding bzip2 cairo cdda cdr clflush cli cmov cmp_legacy constant_tsc cpb cr8_legacy cracklib crypt css cups curl cx16 cx8 cxx dbus de declarative decodeassists desktopglobe dirac dri dts dvd dvdr embedded emboss enca encode exif extapic extd_apicid extras f16c faac fam ffmpeg firefox flac flushbyasid fma fma4 fontconfig fortran fpu fxsr fxsr_opt gdbm gif glamor gnutls gpm gsm ht hw_pstate ibs iconv icu imagemagick imlib ipv6 jpeg jpeg2k kde kipi kwallet lahf_lm lame lbrv lcms ldap libnotify lm lwp mad mca mce misalignsse mmx mmxext mng modules monitor mp3 mp4 mpeg msr mtrr musepack musicbrainz mysql ncurses network nls nodeid_msr nonstop_tsc nopl npt nptl nrip_save nsplugin nx offensive ogg openal opengl openmp opus osvw pae pam pango pat pausefilter pch pclmulqdq pcre pdf pdpe1gb perfctr_core perfctr_nb pfthreshold pge phonon pic plasma png pni policykit popcnt ppds private-headers pse pse36 pulseaudio qml qt3support qt4 qt5 quicktime radio rdtscp readline rep_good rss schroedinger script sdl seccomp sep session skinit sound sox speex spell sql sqlite sse sse2 sse4 sse4_1 sse4_2 sse4a ssl ssse3 startup-notification svg svm svm_lock syscall systemd taglib tbm tce tcpd theora threads tiff topoext truetype tsc tsc_scale udev udisks unicode upower usb utf8 v4l v4l2 vaapi vmcb_clean vme vorbis vpx wdt webkit widgets wifi wxwidgets x264 x265 xattr xcb xcomposite xinerama xml xop xsave xscreensaver xv xvba xvid zlib" ALSA_CARDS="ali5451 als4000 atiixp atiixp-modem bt87x ca0106 cmipci emu10k1x ens1370 ens1371 es1938 es1968 fm801 hda-intel intel8x0 intel8x0m maestro3 trident usb-audio via82xx via82xx-modem ymfpci" APACHE2_MODULES="autoindex alias log_config headers proxy proxy_connect deflate filter env negotiation rewrite remoteip cgid authn_core authz_core authz_host dir mime unixd socache_shmcb" APACHE2_MPMS="worker" CALLIGRA_FEATURES="kexi words flow plan sheets stage tables krita karbon braindump author" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="mmx mmxext sse sse2 3dnowprefetch abm aes aperfmperf apic arat avx bmi1 clflush cmov cmp_legacy constant_tsc cpb cr8_legacy cx16 cx8 de decodeassists extapic extd_apicid f16c flushbyasid fma fma4 fpu fxsr fxsr_opt ht hw_pstate ibs lahf_lm lbrv lm lwp mca mce misalignsse monitor msr mtrr nodeid_msr nonstop_tsc nopl npt nrip_save nx osvw pae pat pausefilter pclmulqdq pdpe1gb perfctr_core perfctr_nb pfthreshold pge pni popcnt pse pse36 rdtscp rep_good sep skinit sse3 sse4 sse4_1 sse4_2 sse4a ssse3 svm svm_lock syscall tbm tce topoext tsc tsc_scale vmcb_clean vme wdt xop xsave" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" GRUB_PLATFORMS="pc efi-64" INPUT_DEVICES="evdev roccat_kovaplus" KERNEL="linux" L10N="fi" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LINGUAS="fi" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-1" PYTHON_SINGLE_TARGET="python3_4" PYTHON_TARGETS="python3_4 python2_7" RUBY_TARGETS="ruby23 ruby24" USERLAND="GNU" VIDEO_CARDS="nvidia nouveau" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq steal rawnat logmark ipmark dhcpmac delude chaos account" multilib_abi="amd64" Unset: CC, CPPFLAGS, CTARGET, CXX, EMERGE_DEFAULT_OPTS, INSTALL_MASK, PORTAGE_BUNZIP2_COMMAND, PORTAGE_COMPRESS, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, USE_PYTHON
Created attachment 471604 [details] build.log for dev-vcs/subversion-1.9.5
Created attachment 471606 [details] config.log for dev-vcs/subversion-1.9.5
This is how the (now failing) check is implemented in build/ac-macros/swig.m4: build/ac-macros/swig.m4:133: dnl Sun Forte adds an extra space before substituting APR_INT64_T_FMT build/ac-macros/swig.m4:134: dnl gcc-2.95 adds an extra space after substituting APR_INT64_T_FMT build/ac-macros/swig.m4:135: dnl thus the egrep patterns have a + in them. build/ac-macros/swig.m4:136: SVN_PYCFMT_SAVE_CPPFLAGS="$CPPFLAGS" build/ac-macros/swig.m4:137: CPPFLAGS="$CPPFLAGS $SVN_APR_INCLUDES" build/ac-macros/swig.m4:138: AC_CACHE_CHECK([for apr_int64_t Python/C API format string], build/ac-macros/swig.m4:139: [svn_cv_pycfmt_apr_int64_t], [ build/ac-macros/swig.m4:140: if test "x$svn_cv_pycfmt_apr_int64_t" = "x"; then build/ac-macros/swig.m4:141: AC_EGREP_CPP([MaTcHtHiS +\"lld\" +EnDeNd], build/ac-macros/swig.m4:142: [#include <apr.h> build/ac-macros/swig.m4:143: MaTcHtHiS APR_INT64_T_FMT EnDeNd], build/ac-macros/swig.m4:144: [svn_cv_pycfmt_apr_int64_t="L"]) build/ac-macros/swig.m4:145: fi build/ac-macros/swig.m4:146: if test "x$svn_cv_pycfmt_apr_int64_t" = "x"; then build/ac-macros/swig.m4:147: AC_EGREP_CPP([MaTcHtHiS +\"ld\" +EnDeNd],r build/ac-macros/swig.m4:148: [#include <apr.h> build/ac-macros/swig.m4:149: MaTcHtHiS APR_INT64_T_FMT EnDeNd], build/ac-macros/swig.m4:150: [svn_cv_pycfmt_apr_int64_t="l"]) build/ac-macros/swig.m4:151: fi build/ac-macros/swig.m4:152: if test "x$svn_cv_pycfmt_apr_int64_t" = "x"; then build/ac-macros/swig.m4:153: AC_EGREP_CPP([MaTcHtHiS +\"d\" +EnDeNd], build/ac-macros/swig.m4:154: [#include <apr.h> build/ac-macros/swig.m4:155: MaTcHtHiS APR_INT64_T_FMT EnDeNd], build/ac-macros/swig.m4:156: [svn_cv_pycfmt_apr_int64_t="i"]) build/ac-macros/swig.m4:157: fi build/ac-macros/swig.m4:158: ]) build/ac-macros/swig.m4:159: CPPFLAGS="$SVN_PYCFMT_SAVE_CPPFLAGS" build/ac-macros/swig.m4:160: if test "x$svn_cv_pycfmt_apr_int64_t" = "x"; then build/ac-macros/swig.m4:161: AC_MSG_ERROR([failed to recognize APR_INT64_T_FMT on this platform]) build/ac-macros/swig.m4:162: fi build/ac-macros/swig.m4:163: AC_DEFINE_UNQUOTED([SVN_APR_INT64_T_PYCFMT], build/ac-macros/swig.m4:164: ["$svn_cv_pycfmt_apr_int64_t"], build/ac-macros/swig.m4:165: [Define to the Python/C API format character suitable] build/ac-macros/swig.m4:166: [ for apr_int64_t]) As the example cpp output in the initial comment demonstrates, something like the -P switch is needed if cpp points to a new GCC. Interestingly enough, sys-devel/clang-4.0.0-r2 produces output that doesn't break the check, even without -P.
