pkg-config (https://pkgconfig.freedesktop.org/) makes it easier to build applications that have library dependencies. Libraries ship .pc files containing the compiler and linker flags needed to build successfully. This saves applications from hardcoding these details into their build scripts, especially when these details can change between operating systems or distributions.
To build a liburing application: gcc $(pkg-config --cflags --libs liburing) -o myapp myapp.c Signed-off-by: Stefan Hajnoczi <[email protected]> --- Makefile | 13 +++++++++++-- .gitignore | 2 ++ liburing.pc.in | 12 ++++++++++++ 3 files changed, 25 insertions(+), 2 deletions(-) create mode 100644 liburing.pc.in diff --git a/Makefile b/Makefile index d42dd45..6755713 100644 --- a/Makefile +++ b/Makefile @@ -33,13 +33,22 @@ ifneq ($(MAKECMDGOALS),clean) include config-host.mak endif -install: +%.pc: %.pc.in + sed -e "s%@prefix@%$(prefix)%g" \ + -e "s%@libdir@%$(libdir)%g" \ + -e "s%@includedir@%$(includedir)%g" \ + -e "s%@NAME@%$(NAME)%g" \ + -e "s%@VERSION@%$(VERSION)%g" \ + $< >$@ + +install: $(NAME).pc @$(MAKE) -C src install prefix=$(DESTDIR)$(prefix) includedir=$(DESTDIR)$(includedir) libdir=$(DESTDIR)$(libdir) + $(INSTALL) -D -m 644 $(NAME).pc $(DESTDIR)$(libdir)/pkgconfig/$(NAME).pc $(INSTALL) -m 755 -d $(DESTDIR)$(mandir)/man2 $(INSTALL) -m 644 man/*.2 $(DESTDIR)$(mandir)/man2 clean: - @rm -f config-host.mak config-host.h cscope.out + @rm -f config-host.mak config-host.h cscope.out $(NAME).pc @$(MAKE) -C src clean @$(MAKE) -C test clean @$(MAKE) -C examples clean diff --git a/.gitignore b/.gitignore index e292825..08ba0e0 100644 --- a/.gitignore +++ b/.gitignore @@ -12,3 +12,5 @@ config-host.h config-host.mak config.log + +liburing.pc diff --git a/liburing.pc.in b/liburing.pc.in new file mode 100644 index 0000000..e621939 --- /dev/null +++ b/liburing.pc.in @@ -0,0 +1,12 @@ +prefix=@prefix@ +exec_prefix=${prefix} +libdir=@libdir@ +includedir=@includedir@ + +Name: @NAME@ +Version: @VERSION@ +Description: io_uring library +URL: http://git.kernel.dk/cgit/liburing/ + +Libs: -L${libdir} -luring +Cflags: -I${includedir} -- 2.21.0
