build: Save cc.sh build products to gen/

Author: tavianator

build/cc.sh

@@ -5,12 +5,5 @@
 
 # Run the compiler and check if it succeeded
 
-set -eu
-
-TMP=$(mktemp)
-trap 'rm -f "$TMP"' EXIT
-
-(
-    set -x
-    $XCC $XCPPFLAGS $XCFLAGS $XLDFLAGS "$@" $XLDLIBS -o "$TMP"
-)
+set -eux
+$XCC $XCPPFLAGS $XCFLAGS $XLDFLAGS "$@" $XLDLIBS

build/deps.mk

@@ -11,7 +11,7 @@ include build/exports.mk
 gen/deps.mk::
 	${MSG} "[ GEN] $@"
 	@printf '# %s\n' "$@" >$@
-	@if build/cc.sh -MD -MP -MF /dev/null build/empty.c; then \
+	@if build/cc.sh -MD -MP build/empty.c -o gen/.deps.out; then \
 	    printf '_CPPFLAGS += -MD -MP\n'; \
 	fi >>$@ 2>$@.log
 	${VCAT} $@

build/header.mk

@@ -76,16 +76,18 @@ gen/config.h: ${PKG_HEADERS} ${HEADERS}
 
 # The short name of the config test
 SLUG = ${@:gen/%.h=%}
+# The hidden output file name
+OUT = ${SLUG:has/%=gen/has/.%.out}
 
 ${HEADERS}: cc
 	@${MKDIR} ${@D}
-	@build/define-if.sh ${SLUG} build/cc.sh build/${SLUG}.c >$@ 2>$@.log; \
+	@build/define-if.sh ${SLUG} build/cc.sh build/${SLUG}.c -o ${OUT} >$@ 2>$@.log; \
 	    build/msg-if.sh "[ CC ] ${SLUG}.c" test $$? -eq 0
 .PHONY: ${HEADERS}
 
 # Check that the C compiler works at all
 cc::
-	@build/cc.sh build/empty.c 2>gen/cc.log; \
+	@build/cc.sh build/empty.c -o gen/.cc.out 2>gen/cc.log; \
 	    ret=$$?; \
 	    build/msg-if.sh "[ CC ] build/empty.c" test $$ret -eq 0; \
 	    exit $$ret

build/pkgconf.sh

@@ -37,7 +37,7 @@ if [ -z "$MODE" ]; then
         CFLAGS=$("$0" --cflags "$LIB") || exit 1
         LDFLAGS=$("$0" --ldflags "$LIB") || exit 1
         LDLIBS=$("$0" --ldlibs "$LIB") || exit 1
-        build/cc.sh $CFLAGS $LDFLAGS build/with/$LIB.c $LDLIBS || exit 1
+        build/cc.sh $CFLAGS $LDFLAGS "build/with/$LIB.c" $LDLIBS -o "gen/with/.$LIB.out" || exit 1
     done
 fi