Added unit pkg-config file.

auto/help

@@ -20,6 +20,7 @@ cat << END
   --modulesdir=DIR     default: "\$libdir/unit/modules"
   --datarootdir=DIR    default: "\$prefix/share"
   --mandir=DIR         default: "\$datarootdir/man"
+  --pkgconfigdir=DIR   default: "\$datarootdir/pkgconfig"
   --localstatedir=DIR  default: "\$prefix/var"
   --statedir=DIR       default: "\$localstatedir/lib/unit"
   --runstatedir=DIR    default: "\$localstatedir/run/unit"

auto/make

@@ -94,7 +94,9 @@ $NXT_BUILD_DIR/lib/$NXT_LIB_SHARED: \$(NXT_LIB_OBJS)
 $NXT_BUILD_DIR/lib/$NXT_LIB_STATIC: \$(NXT_LIB_OBJS)
 	$NXT_STATIC_LINK \$@ \$(NXT_LIB_OBJS)
 
-$NXT_BUILD_DIR/lib/$NXT_LIB_UNIT_STATIC: \$(NXT_LIB_UNIT_OBJS)
+$NXT_BUILD_DIR/lib/$NXT_LIB_UNIT_STATIC: \$(NXT_LIB_UNIT_OBJS) \\
+		$NXT_BUILD_DIR/share/pkgconfig/unit.pc \\
+		$NXT_BUILD_DIR/share/pkgconfig/unit-uninstalled.pc
 	$NXT_STATIC_LINK \$@ \$(NXT_LIB_UNIT_OBJS)
 
 END
@@ -397,6 +399,10 @@ libunit-install: $NXT_BUILD_DIR/lib/$NXT_LIB_UNIT_STATIC
 		|| install -d \$(DESTDIR)$NXT_LIBDIR
 	install -p -m u=rw,go=r $NXT_BUILD_DIR/lib/$NXT_LIB_UNIT_STATIC \
 		\$(DESTDIR)$NXT_LIBDIR/
+	test -d \$(DESTDIR)$NXT_PKGCONFIGDIR \
+		|| install -d \$(DESTDIR)$NXT_PKGCONFIGDIR
+	install -p -m u=rw,go=r $NXT_BUILD_DIR/share/pkgconfig/unit.pc \
+		\$(DESTDIR)$NXT_PKGCONFIGDIR/
 	test -d \$(DESTDIR)$NXT_INCLUDEDIR \
 		|| install -d \$(DESTDIR)$NXT_INCLUDEDIR
 	install -p -m u=rw,go=r src/nxt_unit.h \
@@ -414,6 +420,8 @@ libunit-install: $NXT_BUILD_DIR/lib/$NXT_LIB_UNIT_STATIC
 libunit-uninstall:
 	rm -f \$(DESTDIR)$NXT_LIBDIR/$NXT_LIB_UNIT_STATIC
 	@rmdir -p \$(DESTDIR)$NXT_LIBDIR 2>/dev/null || true
+	rm -f \$(DESTDIR)$NXT_PKGCONFIGDIR/unit.pc
+	@rmdir -p \$(DESTDIR)$NXT_PKGCONFIGDIR 2>/dev/null || true
 	rm -f \$(DESTDIR)$NXT_INCLUDEDIR/nxt_unit.h \
 		\$(DESTDIR)$NXT_INCLUDEDIR/nxt_unit_field.h \
 		\$(DESTDIR)$NXT_INCLUDEDIR/nxt_unit_request.h \
@@ -428,6 +436,31 @@ libunit-uninstall:
 
 END
 
+# pkg-config files
+
+cat << END >> $NXT_MAKEFILE
+
+$NXT_BUILD_DIR/share/pkgconfig/unit.pc: src/unit.pc.in
+	sed -e "s|@PREFIX@|$NXT_PREFIX|" \\
+		-e "s|@LIBDIR@|$NXT_LIBDIR|" \\
+		-e "s|@CFLAGS@|-I$NXT_INCLUDEDIR|" \\
+		-e "s|@VERSION@|\$(NXT_VERSION)|" \\
+		-e "s|@EXTRA_LIBS@|$NXT_LIBM $NXT_LIBS $NXT_LIB_AUX_LIBS|" \\
+		-e "s|@CONFARGS@|$(echo $NXT_CONFIGURE_OPTIONS | sed -e 's| -pie||' -e 's| --njs||')|" \\
+		-e "s|@MODULESDIR@|$NXT_MODULESDIR|" \\
+	< src/unit.pc.in > \$@
+
+$NXT_BUILD_DIR/share/pkgconfig/unit-uninstalled.pc: src/unit.pc.in
+	sed -e "s|@PREFIX@|$(pwd)/$NXT_BUILD_DIR|" \\
+		-e "s|@LIBDIR@|$(pwd)/$NXT_BUILD_DIR/lib|" \\
+		-e "s|@CFLAGS@|-I$(pwd)/src -I$(pwd)$NXT_BUILD_DIR/include|" \\
+		-e "s|@VERSION@|\$(NXT_VERSION)|" \\
+		-e "s|@EXTRA_LIBS@|$NXT_LIBM $NXT_LIBS $NXT_LIB_AUX_LIBS|" \\
+		-e "s|@CONFARGS@|$(echo $NXT_CONFIGURE_OPTIONS | sed -e 's| -pie||' -e 's| --njs||')|" \\
+	< src/unit.pc.in > \$@
+
+END
+
 # Makefile.
 # *.dSYM is MacOSX Clang debug information.
 

auto/options

@@ -73,6 +73,7 @@ do
         ;;
         --datarootdir=*)                 NXT_DATAROOTDIR="$value"            ;;
         --mandir=*)                      NXT_MANDIR="$value"                 ;;
+        --pkgconfigdir=*)                NXT_PKGCONFIGDIR="$value"           ;;
         --localstatedir=*)               NXT_LOCALSTATEDIR="$value"          ;;
         --statedir=*)                    NXT_STATEDIR="$value"               ;;
         --state=*)
@@ -158,6 +159,7 @@ NXT_MODULESDIR="${NXT_MODULESDIR-"$NXT_LIBDIR/unit/modules"}"
 
 NXT_DATAROOTDIR="${NXT_DATAROOTDIR-"$NXT_PREFIX/share"}"
 NXT_MANDIR="${NXT_MANDIR-"$NXT_DATAROOTDIR/man"}"
+NXT_PKGCONFIGDIR="${NXT_PKGCONFIGDIR-"$NXT_DATAROOTDIR/pkgconfig"}"
 
 NXT_LOCALSTATEDIR="${NXT_LOCALSTATEDIR-"$NXT_PREFIX/var"}"
 NXT_STATEDIR="${NXT_STATEDIR-"$NXT_LOCALSTATEDIR/lib/unit"}"

auto/summary

@@ -11,6 +11,7 @@ Unit configuration summary:
   sbin directory: ............ "$NXT_SBINDIR"
   lib directory: ............. "$NXT_LIBDIR"
   include directory: ......... "$NXT_INCLUDEDIR"
+  pkgconfig directory: ....... "$NXT_PKGCONFIGDIR"
   man pages directory: ....... "$NXT_MANDIR"
   modules directory: ......... "$NXT_MODULESDIR"
   state directory: ........... "$NXT_STATEDIR"

configure

@@ -62,6 +62,7 @@ mkdir -p $NXT_BUILD_DIR/lib
 mkdir -p $NXT_BUILD_DIR/lib/unit/modules
 mkdir -p $NXT_BUILD_DIR/sbin
 mkdir -p $NXT_BUILD_DIR/share/man/man8
+mkdir -p $NXT_BUILD_DIR/share/pkgconfig
 mkdir -p $NXT_BUILD_DIR/src
 mkdir -p $NXT_BUILD_DIR/src/test
 mkdir -p $NXT_BUILD_DIR/var/lib/unit

src/unit.pc.in

@@ -0,0 +1,11 @@
+prefix=@PREFIX@
+libdir=@LIBDIR@
+confargs=@CONFARGS@
+modulesdir=@MODULESDIR@
+
+Name: unit
+Description: library to embed Unit
+Version: @VERSION@
+URL: https://unit.nginx.org
+Cflags: @CFLAGS@
+Libs: -L${libdir} -lunit @EXTRA_LIBS@