grep: fix build failure for musl

musl doesn't implement re_match and friends and grep fails to
detect this properly, so force internal regex routines for musl.

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

diff --git a/package/grep/grep.mk b/package/grep/grep.mk
index e07f1691885f49765e0a8a5d0564ec7047868dd0..2c2477c882ce46706c6a6a9a797546a1146c53ac 100644 (file)
--- a/package/grep/grep.mk
+++ b/package/grep/grep.mk
@@ -9,7 +9,8 @@ GREP_SITE = $(BR2_GNU_MIRROR)/grep
 GREP_SOURCE = grep-$(GREP_VERSION).tar.xz
 GREP_LICENSE = GPLv3+
 GREP_LICENSE_FILES = COPYING
-GREP_CONF_OPTS = --disable-perl-regexp --without-included-regex
+GREP_CONF_OPTS = --disable-perl-regexp \
+       $(if $(BR2_TOOLCHAIN_USES_MUSL),--with-included-regex)
 GREP_DEPENDENCIES = $(if $(BR2_NEEDS_GETTEXT_IF_LOCALE),gettext)
 
 # link with iconv if enabled