[tip: perf/urgent] libtraceevent: Copy pkg-config file to output folder when using O=

["tip-bot2 for Sudip Mukherjee" <tip-bot2@linutronix.de>]

The following commit has been merged into the perf/urgent branch of tip:

Commit-ID:     15b3904f8e884e0d34d5f09906cf6526d0b889a2
Gitweb:        https://git.kernel.org/tip/15b3904f8e884e0d34d5f09906cf6526d0b889a2
Author:        Sudip Mukherjee <sudipm.mukherjee@gmail.com>
AuthorDate:    Fri, 15 Nov 2019 11:36:10 
Committer:     Arnaldo Carvalho de Melo <acme@redhat.com>
CommitterDate: Mon, 02 Dec 2019 21:58:20 -03:00

libtraceevent: Copy pkg-config file to output folder when using O=

When we use 'O=' with make to build libtraceevent in a separate folder
it still copies 'libtraceevent.pc' to its source folder. Modify the
Makefile so that it uses the output folder to copy the pkg-config file
and install from there.

Signed-off-by: Sudipm Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Cc: linux-trace-devel@vger.kernel.org
Link: http://lore.kernel.org/lkml/20191115113610.21493-2-sudipm.mukherjee@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---
 tools/lib/traceevent/Makefile | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/lib/traceevent/Makefile b/tools/lib/traceevent/Makefile
index 83446fe..c5a0335 100644
--- a/tools/lib/traceevent/Makefile
+++ b/tools/lib/traceevent/Makefile
@@ -208,10 +208,11 @@ define do_install
 	$(INSTALL) $(if $3,-m $3,) $1 '$(DESTDIR_SQ)$2'
 endef
 
-PKG_CONFIG_FILE = libtraceevent.pc
+PKG_CONFIG_SOURCE_FILE = libtraceevent.pc
+PKG_CONFIG_FILE := $(addprefix $(OUTPUT),$(PKG_CONFIG_SOURCE_FILE))
 define do_install_pkgconfig_file
 	if [ -n "${pkgconfig_dir}" ]; then 					\
-		cp -f ${PKG_CONFIG_FILE}.template ${PKG_CONFIG_FILE}; 		\
+		cp -f ${PKG_CONFIG_SOURCE_FILE}.template ${PKG_CONFIG_FILE};	\
 		sed -i "s|INSTALL_PREFIX|${1}|g" ${PKG_CONFIG_FILE}; 		\
 		sed -i "s|LIB_VERSION|${EVENT_PARSE_VERSION}|g" ${PKG_CONFIG_FILE}; \
 		sed -i "s|LIB_DIR|${libdir}|g" ${PKG_CONFIG_FILE}; \