From 39e8e3951cff8a6f6c284c1dcd0e3e5d66438f81 Mon Sep 17 00:00:00 2001
From: Sam Lantinga <slouken@libsdl.org>
Date: Sat, 8 Dec 2018 11:22:50 -0800
Subject: [PATCH] Fixed bug 4379 - fix parallel build with slibtool

orbea

I am having a parallel build problem with -j3 or higher using the autotools build and slibtool instead of GNU libtool. Basically slibtool is faster than GNU libtool and it will start working before mkdir starts or finishes creating the build/ directory.
---
 Makefile.in  | 7 ++++---
 configure    | 6 +++---
 configure.in | 6 +++---
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/Makefile.in b/Makefile.in
index 4eb6e63239733..c4710561c8086 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -125,7 +125,7 @@ LT_RELEASE  = @LT_RELEASE@
 LT_REVISION = @LT_REVISION@
 LT_LDFLAGS  = -no-undefined -rpath $(libdir) -release $(LT_RELEASE) -version-info $(LT_CURRENT):$(LT_REVISION):$(LT_AGE)
 
-all: $(srcdir)/configure Makefile $(objects) $(objects)/$(TARGET) $(objects)/$(SDLMAIN_TARGET) $(objects)/$(SDLTEST_TARGET)
+all: $(srcdir)/configure Makefile $(objects)/$(TARGET) $(objects)/$(SDLMAIN_TARGET) $(objects)/$(SDLTEST_TARGET)
 
 $(srcdir)/configure: $(srcdir)/configure.in
 	@echo "Warning, configure is out of date, please re-run autogen.sh"
@@ -135,8 +135,9 @@ Makefile: $(srcdir)/Makefile.in
 
 Makefile.in:;
 
-$(objects):
-	$(SHELL) $(auxdir)/mkinstalldirs $@
+$(objects)/.created:
+	$(SHELL) $(auxdir)/mkinstalldirs $(objects)
+	touch $@
 
 update-revision:
 	$(SHELL) $(auxdir)/updaterev.sh
diff --git a/configure b/configure
index e4f8e924e3a9c..7d48ed6a1bb28 100755
--- a/configure
+++ b/configure
@@ -24868,7 +24868,7 @@ DEPENDS=`echo $SOURCES | tr ' ' '\n'`
 for EXT in asm cc m c S; do
     OBJECTS=`echo "$OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.'$EXT',$(objects)/\1.lo,g'`
     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([^ ]*\\)/\\([^ ]*\\)\\.$EXT\\$,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
+\\$(objects)/\\2.lo: \\1/\\2.$EXT \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 done
 
@@ -24885,14 +24885,14 @@ SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.c,$(objects)/\1.lo,g'`
 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([^ ]*\\)/\\([^ ]*\\)\\.c,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.c\\\\
+\\$(objects)/\\2.lo: \\1/\\2.c \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[^ ]*/\([^ ]*\)\.c,$(objects)/\1.lo,g'`
 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([^ ]*\\)/\\([^ ]*\\)\\.c,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.c\\\\
+\\$(objects)/\\2.lo: \\1/\\2.c \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 # Set runtime shared library paths as needed
diff --git a/configure.in b/configure.in
index 95bef6269f11f..39b790b3291a9 100644
--- a/configure.in
+++ b/configure.in
@@ -4073,7 +4073,7 @@ DEPENDS=`echo $SOURCES | tr ' ' '\n'`
 for EXT in asm cc m c S; do
     OBJECTS=`echo "$OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.'$EXT',$(objects)/\1.lo,g'`
     DEPENDS=`echo "$DEPENDS" | sed "s,^\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.$EXT\\$,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.$EXT\\\\
+\\$(objects)/\\2.lo: \\1/\\2.$EXT \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 done
 
@@ -4090,14 +4090,14 @@ SDLMAIN_OBJECTS=`echo $SDLMAIN_SOURCES`
 SDLMAIN_DEPENDS=`echo $SDLMAIN_SOURCES`
 SDLMAIN_OBJECTS=`echo "$SDLMAIN_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
 SDLMAIN_DEPENDS=`echo "$SDLMAIN_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.c\\\\
+\\$(objects)/\\2.lo: \\1/\\2.c \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 SDLTEST_OBJECTS=`echo $SDLTEST_SOURCES`
 SDLTEST_DEPENDS=`echo $SDLTEST_SOURCES`
 SDLTEST_OBJECTS=`echo "$SDLTEST_OBJECTS" | sed 's,[[^ ]]*/\([[^ ]]*\)\.c,$(objects)/\1.lo,g'`
 SDLTEST_DEPENDS=`echo "$SDLTEST_DEPENDS" | sed "s,\\([[^ ]]*\\)/\\([[^ ]]*\\)\\.c,\\\\
-\\$(objects)/\\2.lo: \\1/\\2.c\\\\
+\\$(objects)/\\2.lo: \\1/\\2.c \\$(objects)/.created\\\\
 	\\$(RUN_CMD_CC)\\$(LIBTOOL) --tag=CC --mode=compile \\$(CC) \\$(CFLAGS) \\$(EXTRA_CFLAGS) $DEPENDENCY_TRACKING_OPTIONS -c \\$< -o \\$@,g"`
 
 # Set runtime shared library paths as needed