libgcrypt: fix config file

Change the prefix instead of each path.

Signed-off-by: Rosen Penev <rosenp@gmail.com>

libs/libgcrypt/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=libgcrypt
 PKG_VERSION:=1.8.7
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.bz2
 PKG_SOURCE_URL:=https://www.gnupg.org/ftp/gcrypt/libgcrypt/
@@ -59,9 +59,8 @@ define Build/InstallDev
 	$(CP) $(PKG_INSTALL_DIR)/usr/include/gcrypt*.h $(1)/usr/include/
 	$(CP) $(PKG_INSTALL_DIR)/usr/lib/libgcrypt.{la,a,so*} $(1)/usr/lib/
 	$(CP) $(PKG_INSTALL_DIR)/usr/share/aclocal/libgcrypt.m4 $(1)/usr/share/aclocal/
-	$(SED) 's,^libdir=\"$$$${exec_prefix}/lib,libdir=\"$(STAGING_DIR)/usr/lib,g' $(1)/usr/bin/libgcrypt-config
-	$(SED) 's,^includedir=\"$$$${prefix}/include/,includedir=\"$(STAGING_DIR)/usr/include/,g' $(1)/usr/bin/libgcrypt-config
-	ln -sf $(STAGING_DIR)/usr/bin/libgcrypt-config $(2)/bin/
+	$(SED) 's,^\(prefix\|exec_prefix\)=.*,\1=$(STAGING_DIR)/usr,g' $(1)/usr/bin/libgcrypt-config
+	$(LN) ../../usr/bin/libgcrypt-config $(2)/bin/libgcrypt-config
 endef
 
 define Package/libgcrypt/install