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configure: test whether -lresolv is needed

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Check if -lresolv is needed for hstrerror; set NEEDS_RESOLV
accordingly, and substitute in config.mak.in.

Signed-off-by: Ralf Wildenhues <Ralf.Wildenhues@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Ralf Wildenhues 2009-06-07 07:40:29 +02:00 committed by Junio C Hamano
parent 61dbb3c441
commit 8fccb009fa
2 changed files with 10 additions and 0 deletions
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1
config.mak.in
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@ -32,6 +32,7 @@ NO_CURL=@NO_CURL@
NO_EXPAT=@NO_EXPAT@
NEEDS_LIBICONV=@NEEDS_LIBICONV@
NEEDS_SOCKET=@NEEDS_SOCKET@
NEEDS_RESOLV=@NEEDS_RESOLV@
NO_SYS_SELECT_H=@NO_SYS_SELECT_H@
NO_D_INO_IN_DIRENT=@NO_D_INO_IN_DIRENT@
NO_D_TYPE_IN_DIRENT=@NO_D_TYPE_IN_DIRENT@

9
configure.ac
View File

@ -467,6 +467,15 @@ AC_CHECK_LIB([c], [socket],
AC_SUBST(NEEDS_SOCKET)
test -n "$NEEDS_SOCKET" && LIBS="$LIBS -lsocket"
#
# Define NEEDS_RESOLV if linking with -lnsl and/or -lsocket is not enough.
# Notably on Solaris hstrerror resides in libresolv and on Solaris 7
# inet_ntop and inet_pton additionally reside there.
AC_CHECK_LIB([resolv], [hstrerror],
[NEEDS_RESOLV=],
[NEEDS_RESOLV=YesPlease])
AC_SUBST(NEEDS_RESOLV)
test -n "$NEEDS_RESOLV" && LIBS="$LIBS -lresolv"
## Checks for header files.
AC_MSG_NOTICE([CHECKS for header files])