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Find ncurses from pkg-config if possible, and prefer separate libtinfo

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Recent ncurses can be configured --with-termlib, which splits out the
terminfo-level functions from libncurses into a separate libtinfo.
This allows us to avoid an unnecessary dependency on libncurses.  (We
already avoided this on distributions that link with -Wl,--as-needed.)

Signed-off-by: Anders Kaseorg <andersk@mit.edu>

Closes #128 github pull request.
This commit is contained in:
Anders Kaseorg
2012-03-22 18:25:15 -04:00
committed by Keith Winstein
parent fd0ddf0e22
commit 9cec566cd1
4 changed files with 15 additions and 7 deletions
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configure.ac
+10 -2
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@@ -109,7 +109,7 @@ AS_IF([test x"$with_skalibs" != xno],
AC_SUBST([STDDJB_LDFLAGS], ["$SKALIBS_LDFLAGS -lstddjb"])])
# Checks for header files.
AC_CHECK_HEADERS([arpa/inet.h curses.h fcntl.h langinfo.h limits.h locale.h netinet/in.h stddef.h stdint.h inttypes.h stdlib.h string.h sys/ioctl.h sys/resource.h sys/socket.h sys/time.h term.h termios.h unistd.h wchar.h wctype.h], [], [AC_MSG_ERROR([Missing required header file.])])
AC_CHECK_HEADERS([arpa/inet.h fcntl.h langinfo.h limits.h locale.h netinet/in.h stddef.h stdint.h inttypes.h stdlib.h string.h sys/ioctl.h sys/resource.h sys/socket.h sys/time.h term.h termios.h unistd.h wchar.h wctype.h], [], [AC_MSG_ERROR([Missing required header file.])])
AC_CHECK_HEADERS([pty.h util.h libutil.h])
AC_CHECK_HEADERS([endian.h sys/endian.h])
@@ -135,7 +135,15 @@ AC_CHECK_FUNCS([gettimeofday setrlimit inet_ntoa iswprint memchr memset nl_langi
AC_SEARCH_LIBS([clock_gettime], [rt], [AC_DEFINE([HAVE_CLOCK_GETTIME], [1], [Define if clock_gettime is available.])])
AC_CHECK_LIB([ncurses], [setupterm], [], [AC_MSG_ERROR([Missing ncurses.])])
PKG_CHECK_MODULES([TINFO], [tinfo], ,
[PKG_CHECK_MODULES([TINFO], [ncurses], ,
[AX_CHECK_LIBRARY([TINFO], [curses.h], [tinfo],
[AC_SUBST([TINFO_CFLAGS], ["$TINFO_CPPFLAGS"])
AC_SUBST([TINFO_LIBS], ["$TINFO_LDFLAGS -ltinfo"])],
[AX_CHECK_LIBRARY([TINFO], [curses.h], [ncurses], ,
[AC_SUBST([TINFO_CFLAGS], ["$TINFO_CPPFLAGS"])
AC_SUBST([TINFO_LIBS], ["$TINFO_LDFLAGS -lncurses"])],
[AC_MSG_ERROR([Unable to find libtinfo or libncurses])])])])])
AC_ARG_VAR([poll_CFLAGS], [C compiler flags for poll])
AC_ARG_VAR([poll_LIBS], [linker flags for poll])