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Bug 879233

Summary: dev-util/cdecl: build failure with FLEX="reflex" (sys-devel/reflex)
Product: Gentoo Linux Reporter: Sam James <sam>
Component: Current packagesAssignee: Florian Schmaus <flow>
Status: RESOLVED FIXED    
Severity: normal    
Priority: Normal    
Version: unspecified   
Hardware: All   
OS: Linux   
See Also: https://bugs.gentoo.org/show_bug.cgi?id=879231
https://github.com/paul-j-lucas/cdecl/issues/27
Whiteboard:
Package list:
Runtime testing required: ---
Attachments: build.log
config.log

Description Sam James archtester Gentoo Infrastructure gentoo-dev Security 2022-11-02 23:22:49 UTC 
Created attachment 826751 [details]
build.log

sys-devel/reflex is a fork of the original flex (of which sys-devel/flex is itself a fork -- so sys-devel/reflex & sys-devel/flex both share ancestry with a common, older 'flex').

I've not encountered any actual compatbility problems with it yet and it's quite nice as it compiles with no warnings and such.

Anyway, with FLEX="reflex" set in make.conf, I get this with dev-util/cdecl:
```
checking for library containing yywrap... -lfl
checking whether yytext is a pointer... yes
checking if flex is the lexer generator... no
configure: error: required program "flex" not found

!!! Please attach the following file when seeking support:
!!! /var/tmp/portage/dev-util/cdecl-13.0/work/cdecl-cdecl-13.0/config.log
 * ERROR: dev-util/cdecl-13.0::gentoo failed (configure phase):
 *   econf failed
```

----

Portage 3.0.38.1 (python 3.11.0-final-0, default/linux/amd64/17.1/hardened, gcc-12, glibc-2.36-r5, 5.15.76-gentoo-dist-hardened x86_64)
=================================================================
System uname: Linux-5.15.76-gentoo-dist-hardened-x86_64-AMD_Ryzen_9_3950X_16-Core_Processor-with-glibc2.36
KiB Mem:    65765032 total,  33741256 free
KiB Swap:    8290300 total,   8287740 free
Timestamp of repository gentoo: Wed, 02 Nov 2022 22:31:52 +0000
Timestamp of repository emacs: Thu, 20 Oct 2022 08:16:47 +0000
Head commit of repository emacs: 967b2026c26d3f764851f1829f54c7fd6bdc6711

Timestamp of repository kde: Wed, 02 Nov 2022 13:46:54 +0000
Head commit of repository kde: bfc403a2bf0bca0c2fb36579d68906b9db6e195a

Timestamp of repository qt: Thu, 20 Oct 2022 06:32:12 +0000
Head commit of repository qt: e93a66b15f7fffffaa53141431d37a9e74ef3a86

Timestamp of repository sam_c: Sun, 30 Oct 2022 22:01:57 +0000
Head commit of repository sam_c: 4acdd0b7cdfbcfc94a94165d4b79518f2c153d9b

Timestamp of repository steam-overlay: Thu, 20 Oct 2022 06:32:14 +0000
Head commit of repository steam-overlay: f40a22632e77a46be0153821f4a7f7847029533b

sh dash 0.5.11.5
ld GNU ld (Gentoo 2.39 p5) 2.39.0
ccache version 4.7.2 [disabled]
app-misc/pax-utils:        1.3.5::gentoo
app-shells/bash:           5.2_p2-r2::gentoo
dev-java/java-config:      2.3.1::gentoo
dev-lang/perl:             5.36.0-r1::gentoo
dev-lang/python:           2.7.18_p15-r1::gentoo, 3.8.15_p1::gentoo, 3.9.15_p1::gentoo, 3.10.8_p1::gentoo, 3.11.0::gentoo
dev-lang/rust:             1.64.0-r1::gentoo
dev-util/ccache:           4.7.2::gentoo
dev-util/cmake:            3.24.3::gentoo
dev-util/meson:            0.64.0_rc2::gentoo
sys-apps/baselayout:       2.9::gentoo
sys-apps/sandbox:          2.29::gentoo
sys-apps/systemd:          252::gentoo
sys-devel/autoconf:        2.13-r3::gentoo, 2.71-r4::gentoo
sys-devel/automake:        1.16.5::gentoo
sys-devel/binutils:        2.39-r4::gentoo
sys-devel/binutils-config: 5.4.1::gentoo
sys-devel/clang:           14.0.6-r1::gentoo, 15.0.3::gentoo, 16.0.0_pre20221023::gentoo
sys-devel/gcc:             9.5.0::gentoo, 10.4.1_p20221027::gentoo, 11.3.1_p20221028::gentoo, 12.2.1_p20221029::gentoo, 13.0.0_pre20221030::gentoo
sys-devel/gcc-config:      2.8::gentoo
sys-devel/libtool:         2.4.7::gentoo
sys-devel/lld:             14.0.6-r1::gentoo, 16.0.0_pre20221023::gentoo
sys-devel/llvm:            14.0.6-r2::gentoo, 15.0.3::gentoo, 16.0.0_pre20221023::gentoo
sys-devel/make:            4.4::gentoo
sys-kernel/linux-headers:  6.0::gentoo (virtual/os-headers)
sys-libs/glibc:            2.36-r5::gentoo
Repositories:

gentoo
    location: /var/db/repos/gentoo
    sync-type: rsync
    sync-uri: https://github.com/gentoo-mirror/gentoo.git
    priority: -1000
    eclass-overrides: sam_c
    sync-rsync-extra-opts:
    sync-rsync-verify-max-age: 24
    sync-rsync-verify-metamanifest: yes
    sync-rsync-verify-jobs: 1

crossdev
    location: /var/db/repos/crossdev
    masters: gentoo
    eclass-overrides: sam_c

emacs
    location: /var/db/repos/emacs
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/emacs.git
    masters: gentoo
    eclass-overrides: sam_c

kde
    location: /var/db/repos/kde
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/kde.git
    masters: gentoo
    eclass-overrides: sam_c

local
    location: /var/db/repos/local
    masters: gentoo
    eclass-overrides: sam_c

qt
    location: /var/db/repos/qt
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/qt.git
    masters: gentoo
    eclass-overrides: sam_c

sam_c
    location: /var/db/repos/sam_c
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/sam_c.git
    masters: gentoo
    eclass-overrides: sam_c

steam-overlay
    location: /var/db/repos/steam-overlay
    sync-type: git
    sync-uri: https://github.com/gentoo-mirror/steam-overlay.git
    masters: gentoo
    eclass-overrides: sam_c

test
    location: /var/db/repos/test
    masters: gentoo
    eclass-overrides: sam_c

ACCEPT_KEYWORDS="amd64 ~amd64"
ACCEPT_LICENSE="@FREE"
CBUILD="x86_64-pc-linux-gnu"
CFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type"
CHOST="x86_64-pc-linux-gnu"
CONFIG_PROTECT="/etc /usr/share/config /usr/share/gnupg/qualified.txt"
CONFIG_PROTECT_MASK="/etc/ca-certificates.conf /etc/dconf /etc/env.d /etc/fonts/fonts.conf /etc/gconf /etc/gentoo-release /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 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type -D_GLIBCXX_ASSERTIONS"
DISTDIR="/var/cache/distfiles"
EMERGE_DEFAULT_OPTS="--keep-going --with-bdeps=y --complete-graph --deep --dynamic-deps=n --changed-deps=n --usepkg-exclude sys-fs/zfs --usepkg-exclude sys-fs/zfs-kmod --usepkg=y --implicit-system-deps=n --jobs=4 --load-average 32"
ENV_UNSET="CARGO_HOME DBUS_SESSION_BUS_ADDRESS DISPLAY GOBIN GOPATH PERL5LIB PERL5OPT PERLPREFIX PERL_CORE PERL_MB_OPT PERL_MM_OPT XAUTHORITY XDG_CACHE_HOME XDG_CONFIG_HOME XDG_DATA_HOME XDG_RUNTIME_DIR XDG_STATE_HOME"
FCFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type"
FEATURES="assume-digests binpkg-docompress binpkg-dostrip binpkg-logs buildpkg cgroup clean-logs config-protect-if-modified distlocks fixlafiles ipc-sandbox mount-sandbox multilib-strict network-sandbox news parallel-fetch parallel-install pid-sandbox preserve-libs protect-owned qa-unresolved-soname-deps sandbox sfperms split-log strict unknown-features-warn unmerge-logs unmerge-orphans userfetch userpriv usersandbox usersync xattr"
FFLAGS="-O2 -pipe -march=native -fdiagnostics-color=always -frecord-gcc-switches -Wreturn-type"
GENTOO_MIRRORS="http://mirror.bytemark.co.uk/gentoo/ http://www.mirrorservice.org/sites/distfiles.gentoo.org/ http://mirrors.soeasyto.com/distfiles.gentoo.org/"
LANG="en_GB.UTF-8"
LDFLAGS="-Wl,-O1 -Wl,--as-needed -Wl,--defsym=__gentoo_check_ldflags__=0 -Wl,-z,pack-relative-relocs"
LEX="reflex"
LINGUAS="en en_GB"
PKGDIR="/var/cache/binpkgs"
PORTAGE_BUNZIP2_COMMAND="lbunzip2"
PORTAGE_COMPRESS="xz"
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"
RUSTFLAGS="-C target-cpu=native -C link-arg=-Wl,-z,pack-relative-relocs"
SHELL="/bin/bash"
USE="PIC X a52 aac acl acpi activities aes alsa amd64 avx avx2 bash-completion bluetooth branding bzip2 cairo caps cdda cdr clang cli crypt dbus declarative dist-kernel dri dts dvd dvdr emacs encode exif f16c filecaps firewalld flac fma3 fortran freetype gdbm gif gmp gpm graphite gtk gui hardened harfbuzz hunspell iconv icu ipv6 jit jpeg kde kdesu kwallet lcms libglvnd libnotify libtirpc llvm-libunwind lto mad mmx mmxext mng mp3 mp4 mpeg multilib ncurses nftables nls nptl ogg opengl openmp pam pango pclmul pcre pdf pgo pie pipewire plasma png policykit popcnt ppds pulseaudio qml qt5 rdrand readline screencast sdl seccomp semantic-desktop sha spell sse sse2 sse3 sse4_1 sse4_2 sse4a ssl ssp ssse3 startup-notification svg system-av1 system-binutils system-boost system-bootstrap system-cairo system-clang system-digest system-ffmpeg system-harfbuzz system-heimdal system-icu system-jpeg system-leveldb system-libevent system-libs system-libvpx system-libyaml system-llvm system-lz4 system-mitkrb5 system-sqlite system-ssl system-tbb system-uulib system-webp system-zlib systemd test-rust tiff truetype udev udisks unicode upower usb verify-sig vorbis vulkan wayland widgets x264 xattr xcb xml xtpax xv xvid zfs zlib zsh-completion" ABI_X86="32 64" ADA_TARGET="gnat_2020" APACHE2_MODULES="authn_core authz_core socache_shmcb unixd actions alias auth_basic authn_alias authn_anon authn_dbm authn_default authn_file authz_dbm authz_default authz_groupfile authz_host authz_owner authz_user autoindex cache cgi cgid dav dav_fs dav_lock deflate dir disk_cache env expires ext_filter file_cache filter headers include info log_config logio mem_cache mime mime_magic negotiation rewrite setenvif speling status unique_id userdir usertrack vhost_alias" CALLIGRA_FEATURES="karbon sheets words" COLLECTD_PLUGINS="df interface irq load memory rrdtool swap syslog" CPU_FLAGS_X86="aes avx avx2 f16c fma3 mmx mmxext pclmul popcnt rdrand sha sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3" ELIBC="glibc" GPSD_PROTOCOLS="ashtech aivdm earthmate evermore fv18 garmin garmintxt gpsclock greis isync itrax mtk3301 nmea ntrip navcom oceanserver oldstyle oncore rtcm104v2 rtcm104v3 sirf skytraq superstar2 timing tsip tripmate tnt ublox ubx" INPUT_DEVICES="libinput" KERNEL="linux" L10N="en en-GB" LCD_DEVICES="bayrad cfontz cfontz633 glk hd44780 lb216 lcdm001 mtxorb ncurses text" LIBREOFFICE_EXTENSIONS="presenter-console presenter-minimizer" LLVM_TARGETS="X86 AArch64 AMDGPU ARM AVR BPF Hexagon Lanai MSP430 Mips NVPTX PowerPC RISCV Sparc SystemZ WebAssembly XCore" LUA_SINGLE_TARGET="lua5-1" LUA_TARGETS="lua5-1" OFFICE_IMPLEMENTATION="libreoffice" PHP_TARGETS="php7-4 php8-0" POSTGRES_TARGETS="postgres12 postgres13" PYTHON_SINGLE_TARGET="python3_10" PYTHON_TARGETS="python3_10 pypy3 python3_11 python3_8 python3_9" QEMU_USER_TARGETS="aarch64 aarch64_be alpha armeb hppa m68k ppc64le sparc64" RUBY_TARGETS="ruby31" USERLAND="GNU" VIDEO_CARDS="amdgpu radeonsi radeon" XTABLES_ADDONS="quota2 psd pknock lscan length2 ipv4options ipset ipp2p iface geoip fuzzy condition tee tarpit sysrq proto steal rawnat logmark ipmark dhcpmac delude chaos account"
YACC="byacc"
Unset:  ADDR2LINE, AR, ARFLAGS, AS, ASFLAGS, CC, CCLD, CONFIG_SHELL, CPP, CPPFLAGS, CTARGET, CXX, CXXFILT, ELFEDIT, EXTRA_ECONF, F77FLAGS, FC, GCOV, GPROF, INSTALL_MASK, LC_ALL, LD, LFLAGS, LIBTOOL, MAKE, MAKEFLAGS, MAKEOPTS, NM, OBJCOPY, OBJDUMP, PORTAGE_BINHOST, PORTAGE_COMPRESS_FLAGS, PORTAGE_RSYNC_EXTRA_OPTS, RANLIB, READELF, SIZE, STRINGS, STRIP, YFLAGS
Comment 1 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2022-11-02 23:23:06 UTC 
Created attachment 826753 [details]
config.log
Comment 2 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2022-11-02 23:24:51 UTC 
It's because configure.ac is aggressively checking for flex specifically rather than a POSIX lex: https://github.com/paul-j-lucas/cdecl/blob/ae9841f2ce4d9b924b834d806590351a54057f6c/configure.ac#L55.

I wonder if that's really needed. I feel like AC_PROG_LEX should be enough most of the time, rather than the used AX_PROG_FLEX.

If you have a better idea for how I should be setting reflex, let me know though.
Comment 3 Sam James archtester Gentoo Infrastructure gentoo-dev Security 2022-11-02 23:38:37 UTC 
Similar issue with YACC="byacc" in make.conf :(
Comment 4 Larry the Git Cow gentoo-dev 2025-03-19 00:40:57 UTC 
The bug has been closed via the following commit(s):

https://gitweb.gentoo.org/repo/gentoo.git/commit/?id=c583782bc9f285b926f52cf28c16fc8935258171

commit c583782bc9f285b926f52cf28c16fc8935258171
Author:     Sam James <sam@gentoo.org>
AuthorDate: 2025-03-19 00:39:26 +0000
Commit:     Sam James <sam@gentoo.org>
CommitDate: 2025-03-19 00:40:30 +0000

    dev-util/cdecl: add 18.4.1
    
    * Lots of gnulib updates, so may fix bug #835511
    * Tests now pass with /bin/sh as dash (bug #889144)
    * configure check now only looks for bison/flex if parser is missing (bug #879233)
    
    Bug: https://bugs.gentoo.org/835511
    Closes: https://bugs.gentoo.org/889144
    Closes: https://bugs.gentoo.org/879233
    Closes: https://bugs.gentoo.org/919153
    Signed-off-by: Sam James <sam@gentoo.org>

 dev-util/cdecl/Manifest            |  1 +
 dev-util/cdecl/cdecl-18.4.1.ebuild | 27 +++++++++++++++++++++++++++
 2 files changed, 28 insertions(+)