[openwrt/openwrt] perf: fix building with musl when NLS is enabled

[LEDE Commits]

hauke pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/d4161798dd4061bd861aac5b34bca0e2900bc3fd

commit d4161798dd4061bd861aac5b34bca0e2900bc3fd
Author: Marek Behún <kabel at blackhole.sk>
AuthorDate: Sat Sep 26 21:42:52 2020 +0000

    perf: fix building with musl when NLS is enabled
    
    This package fails with a strange error when building with musl when NLS
    is enabled. The configuration thinks that libelf is not present, even
    though DEPENDS contains +libelf, because when NLS is enabled, libelf.so
    depends on libintl, and the correct LDFLAGS are missing for
    libintl-full. This then causes the configuration script to check for
    glibc, but this fails because we are using musl.
    
    Signed-off-by: Marek Behún <kabel at blackhole.sk>
---
 package/devel/perf/Makefile | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/package/devel/perf/Makefile b/package/devel/perf/Makefile
index 3bb403916b..e611d5eca3 100644
--- a/package/devel/perf/Makefile
+++ b/package/devel/perf/Makefile
@@ -22,6 +22,7 @@ PKG_FLAGS:=nonshared
 PKG_BUILD_DIR:=$(LINUX_DIR)/tools/perf-$(TARGET_DIR_NAME)
 
 include $(INCLUDE_DIR)/package.mk
+include $(INCLUDE_DIR)/nls.mk
 
 define Package/perf
   SECTION:=devel
@@ -38,6 +39,8 @@ endef
 
 HOST_CFLAGS += -I$(LINUX_DIR)/tools/include
 
+TARGET_LDFLAGS += $(INTL_LDFLAGS)
+
 MAKE_FLAGS = \
 	ARCH="$(LINUX_KARCH)" \
 	NO_LIBPERL=1 \