Use pkg-config for libkmod CFLAGS and LIBS

Makefile

@@ -12,7 +12,7 @@ pkglibdir ?= ${libdir}/dracut
 sysconfdir ?= ${prefix}/etc
 bindir ?= ${prefix}/bin
 mandir ?= ${prefix}/share/man
-CFLAGS ?= -O2 -g -Wall
+CFLAGS ?= -O2 -g -Wall $(KMOD_CFLAGS)
 CFLAGS += -std=gnu99 -D_FILE_OFFSET_BITS=64 -Wformat -Werror=format-security -Wp,-D_FORTIFY_SOURCE=2
 bashcompletiondir ?= ${datadir}/bash-completion/completions
 pkgconfigdatadir ?= $(datadir)/pkgconfig
@@ -61,7 +61,7 @@ install/util.o: install/util.c install/util.h install/macro.h install/log.h
 install/strv.o: install/strv.c install/strv.h install/util.h install/macro.h install/log.h
 
 install/dracut-install: $(DRACUT_INSTALL_OBJECTS)
-	$(CC) $(LDFLAGS) -o $@ $(DRACUT_INSTALL_OBJECTS) $(LDLIBS) -lkmod
+	$(CC) $(LDFLAGS) -o $@ $(DRACUT_INSTALL_OBJECTS) $(LDLIBS) $(KMOD_LIBS)
 
 dracut-install: install/dracut-install
 	ln -fs $< $@

configure

@@ -50,6 +50,11 @@ while (($# > 0)); do
     shift
 done
 
+if ! pkg-config --exists --print-errors " libkmod >= 15 "; then
+    echo "dracut needs pkg-config and libkmod >= 15." >&2
+    exit 1
+fi
+
 cat > Makefile.inc.$$ <<EOF
 prefix ?= ${prefix}
 libdir ?= ${libdir:-${prefix}/lib}
@@ -59,6 +64,8 @@ sbindir ?= ${sbindir:-${prefix}/sbin}
 mandir ?= ${mandir:-${prefix}/share/man}
 enable_documentation ?= ${enable_documentation:-yes}
 bindir ?= ${bindir:-${prefix}/bin}
+KMOD_CFLAGS ?= $(pkg-config --cflags " libkmod >= 15 ")
+KMOD_LIBS ?= $(pkg-config --libs " libkmod >= 15 ")
 EOF
 
 {

dracut.spec

@@ -39,6 +39,7 @@ Source1: https://www.gnu.org/licenses/lgpl-2.1.txt
 
 
 BuildRequires: bash git
+BuildRequires: kmod-devel >= 15
 
 %if 0%{?fedora} || 0%{?rhel}
 BuildRoot: %{_tmppath}/%{name}-%{version}-%{release}-root-%(%{__id_u} -n)
@@ -46,7 +47,6 @@ BuildRequires: pkgconfig
 %endif
 %if 0%{?fedora}
 BuildRequires: bash-completion
-BuildRequires: pkgconfig
 %endif
 
 %if 0%{?suse_version}
@@ -223,10 +223,13 @@ This package contains tools to assemble the local initrd and host configuration.
 cp %{SOURCE1} .
 
 %build
-%configure --systemdsystemunitdir=%{_unitdir} --bashcompletiondir=$(pkg-config --variable=completionsdir bash-completion) --libdir=%{_prefix}/lib \
+%configure  --systemdsystemunitdir=%{_unitdir} \
+            --bashcompletiondir=$(pkg-config --variable=completionsdir bash-completion) \
+            --libdir=%{_prefix}/lib \
 %if %{without doc}
-     --disable-documentation
+            --disable-documentation \
 %endif
+            ${NULL}
 
 make %{?_smp_mflags}