This patch series is a continuation of recent work to use pkg-config for feature checks for libtraceevent and libtracefs. The original intention of the first patches was to fix build issues with libtracefs installed with its meson build system (used in Gentoo), which installs headers in a different directory as the make build system. This has been reported here: https://github.com/rostedt/libtracefs/issues/3 In order to fix the feature check, instead of using #include <tracefs/tracefs.h> in tools/build/feature/test-libtracefs.c, we need to use #include <tracefs.h> and add the appropriate -I flag for the include directory, which is what is now done with pkg-config. An unintended consequence of this (reported by Thorsten) was that other tools which also perform the same feature check for libtracefs became broken, because the initial patch only set the include flag for perf in tools/perf/Makefile.config. This patch series fixes this issue by moving the feature check flags to the file tools/build/Makefile.feature, which ensures the flags get set for all tools that need them. I tried to write the new code in a way that would be easily extensible to other dependencies that may be used via pkg-config as well. There is no change in this new submission relative to the last (which has been tested by Thorsten to fix the build issue in Fedora). The only change has been to add in CC Steven Rostedt and the list linux-trace-devel@xxxxxxxxxxxxxxx. Best regards, -Guilherme Guilherme Amadio (5): perf build: Warn if libtracefs is not found tools: Make pkg-config dependency checks usable by other tools tools/verification: Use pkg-config in lib_setup of Makefile.config tools/rtla: Use pkg-config in lib_setup of Makefile.config tools/latency: Use pkg-config in lib_setup of Makefile.config tools/build/Makefile.feature | 18 ++++++++++++++++++ tools/perf/Makefile.config | 13 +++++-------- tools/tracing/latency/Makefile.config | 3 ++- tools/tracing/rtla/Makefile.config | 3 ++- tools/verification/rv/Makefile.config | 3 ++- 5 files changed, 29 insertions(+), 11 deletions(-) -- 2.39.3
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