Add autoconf check for awk and use proper macro $(AWK)

build/rules.mk

@@ -41,7 +41,7 @@ install-p: $(targets) $(install_targets)
 distclean-p depend-p clean-p:
 
 depend: depend-recursive
-	@echo $(top_srcdir) $(top_builddir) $(srcdir) $(CPP) $(INCLUDES) $(EXTRA_INCLUDES) $(DEFS) $(CPPFLAGS) $(srcdir)/*.c *.c | awk -f $(top_srcdir)/build/mkdep.awk > $(builddir)/.deps || true
+	@echo $(top_srcdir) $(top_builddir) $(srcdir) $(CPP) $(INCLUDES) $(EXTRA_INCLUDES) $(DEFS) $(CPPFLAGS) $(srcdir)/*.c *.c | $(AWK) -f $(top_srcdir)/build/mkdep.awk > $(builddir)/.deps || true
 
 clean: clean-recursive clean-x
 

build/rules_pear.mk

@@ -43,7 +43,7 @@ install-p: $(targets) $(install_targets)
 distclean-p depend-p clean-p:
 
 depend: depend-recursive
-	@echo $(top_srcdir) $(top_builddir) $(srcdir) $(CPP) $(INCLUDES) $(EXTRA_INCLUDES) $(DEFS) $(CPPFLAGS) $(srcdir)/*.c *.c | awk -f $(top_srcdir)/build/mkdep.awk > $(builddir)/.deps || true
+	@echo $(top_srcdir) $(top_builddir) $(srcdir) $(CPP) $(INCLUDES) $(EXTRA_INCLUDES) $(DEFS) $(CPPFLAGS) $(srcdir)/*.c *.c | $(AWK) -f $(top_srcdir)/build/mkdep.awk > $(builddir)/.deps || true
 
 clean: clean-recursive clean-x
 

configure.in

@@ -73,6 +73,7 @@ dnl We want this one before the checks, so the checks can modify CFLAGS.
 test -z "$CFLAGS" && auto_cflags=1
 
 dnl Checks for programs.
+AC_PROG_AWK
 AC_PROG_YACC
 if test "$YACC" != "bison -y"; then
     AC_MSG_WARN(You will need bison if you want to regenerate the PHP parsers.)
@@ -695,6 +696,7 @@ PHP_SUBST(phplibdir)
 PHP_SUBST(phptempdir)
 PHP_SUBST(prefix)
 
+PHP_SUBST(AWK)
 PHP_SUBST(CC)
 PHP_SUBST(CFLAGS)
 PHP_SUBST(CONFIGURE_COMMAND)