URL:
<https://savannah.gnu.org/support/?110990>
Summary: AS_IF / AC_CHECK_LIB generates invalid shell on
editline-1.17.1
Group: Autoconf
Submitter: slyfox
Submitted: Sat 23 Dec 2023 06:24:04 PM UTC
Priority: 5 - Unprioritized
Severity: 3 - Normal
Status: None
Privacy: Public
Assigned to: None
Originator Email:
Open/Closed: Open
Discussion Lock: Any
Operating System: GNU/Linux
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Follow-up Comments:
-------------------------------------------------------
Date: Sat 23 Dec 2023 06:24:04 PM UTC By: Sergei Trofimovich <slyfox>
Noticed seeming autoconf-2.72 regression when was building
https://github.com/troglobit/editline/blob/master/configure.ac#L92 in
`nixpkgs`.
Complete reproducer:
dnl cat configure.ac
AC_INIT(editline, 1.17.1, https://github.com/troglobit/editline/issues)
AC_CONFIG_SRCDIR([a.c])
AC_PROG_CC
AC_ARG_ENABLE(termcap,
AS_HELP_STRING([--enable-termcap], [Use termcap library to query terminal
size.]))
# Check for a termcap compatible library if enabled
AS_IF([test "x$enable_termcap" = "xyes"],
AC_CHECK_LIB(terminfo, tgetent, , [
AC_CHECK_LIB(termcap, tgetent, , [
AC_CHECK_LIB(tinfo, tgetent, , [
AC_CHECK_LIB(curses, tgetent, , [
AC_CHECK_LIB(ncurses, tgetent, , [
AC_MSG_ERROR([Cannot find a termcap capable library, try
installing Ncurses.])])
])
])
])
])
)
# Generate all files
AC_OUTPUT
Triggering:
$ autoreconf -ifv && touch a.c && ./configure
autoreconf: export WARNINGS=
autoreconf: Entering directory '.'
autoreconf: configure.ac: not using Gettext
autoreconf: running: aclocal --force
autoreconf: configure.ac: tracing
autoreconf: configure.ac: not using Libtool
autoreconf: configure.ac: not using Intltool
autoreconf: configure.ac: not using Gtkdoc
autoreconf: running:
/nix/store/78q16yv4zyrary0xw9m6q1yi8i9h33bl-autoconf-2.72/bin/autoconf
--force
autoreconf: configure.ac: not using Autoheader
autoreconf: configure.ac: not using Automake
autoreconf: Leaving directory '.'
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether the compiler supports GNU C... yes
checking whether gcc accepts -g... yes
checking for gcc option to enable C11 features... none needed
./configure: line 3476: syntax error near unexpected token `;;'
./configure: line 3476: ` ;;'
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