libre2: fix pkgconfig paths

Upstream broke them.
Signed-off-by: NRosen Penev <rosenp@gmail.com>

libs/libre2/Makefile

@@ -2,7 +2,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=re2
 PKG_VERSION:=2023-02-01
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://codeload.github.com/google/re2/tar.gz/$(PKG_VERSION)?
@@ -38,6 +38,12 @@ CMAKE_OPTIONS += \
 TARGET_LDFLAGS += \
 	-Wl,--as-needed,--gc-sections
 
+define Build/InstallDev
+	$(call Build/InstallDev/cmake,$(1))
+	$(SED) 's,/usr/include,$$$${prefix}/include,g' $(1)/usr/lib/pkgconfig/re2.pc
+	$(SED) 's,/usr/lib,$$$${exec_prefix}/lib,g' $(1)/usr/lib/pkgconfig/re2.pc
+endef
+
 define Package/re2/install
 	$(INSTALL_DIR) $(1)/usr/lib
 	$(INSTALL_DATA) $(PKG_INSTALL_DIR)/usr/lib/libre2.so $(1)/usr/lib/