From 9ee4c23a467a15452d67804139abd68dc7c1d51a Mon Sep 17 00:00:00 2001
From: Garak <garakmon@gmail.com>
Date: Sat, 11 Aug 2018 21:11:28 -0400
Subject: [PATCH 1/4] remove -j4

---
 INSTALL.md | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/INSTALL.md b/INSTALL.md
index 0fa9af8e7..c5425204c 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -64,4 +64,4 @@ cd ../pokeemerald
 ./build_tools.sh
 ```
 
-And build the ROM with `make -j4`.
+And build the ROM with `make`.

From 296a539664975b29f25a24958ec513a2ecd008c8 Mon Sep 17 00:00:00 2001
From: Garak <garakmon@gmail.com>
Date: Sat, 11 Aug 2018 21:19:27 -0400
Subject: [PATCH 2/4] add faster builds and NODEP sections from pokeruby

---
 INSTALL.md | 29 +++++++++++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/INSTALL.md b/INSTALL.md
index c5425204c..bb5e9849d 100644
--- a/INSTALL.md
+++ b/INSTALL.md
@@ -65,3 +65,32 @@ cd ../pokeemerald
 ```
 
 And build the ROM with `make`.
+
+# Faster builds
+
+After the first build, subsequent builds are faster. You can further speed up the build:
+
+## Parallel build
+
+This significantly speeds up the build on modern machines.
+
+By default `make` only runs a single thread. You can tell `make` to run on multiple threads with `make -j`. See the manfile for usage (`man make`).
+
+The optimal value for `-j` is the number of logical cores on your machine. You can run `nproc` to see the exact number.
+
+```
+$ nproc
+8
+```
+
+If you have 8 cores, run: `make -j8`
+
+`-j` on its own will spawn a new thread for each job. A clean build will have thousands of jobs, which will be slower than not using -j at all.
+
+## Disable the dependency scanning
+
+If you've only changed `.c` or `.s` files, you can turn off the dependency scanning temporarily. Changes to any other files will be ignored, and the build will either fail or not reflect those changes.
+
+`make NODEP=1`
+
+

From 2cfc7bd358561aa88930a07e2a05d3c919c3beb3 Mon Sep 17 00:00:00 2001
From: Garak <garakmon@gmail.com>
Date: Sat, 11 Aug 2018 21:21:43 -0400
Subject: [PATCH 3/4] change darwin check

---
 Makefile | 9 +--------
 1 file changed, 1 insertion(+), 8 deletions(-)

diff --git a/Makefile b/Makefile
index 58a93bb55..38e8fd71e 100644
--- a/Makefile
+++ b/Makefile
@@ -31,14 +31,7 @@ LDFLAGS = -Map ../../$(MAP)
 
 LIB := -L ../../tools/agbcc/lib -lgcc -lc
 
-ifeq ($(OS),Windows_NT)
-	SHA1 := sha1sum -c
-else ifeq ($(shell uname -s),Darwin)
-	SHA1 := shasum -c
-else
-	SHA1 := sha1sum -c
-endif
-
+SHA1SUM := $(shell { command -v sha1sum || command -v shasum; } 2>/dev/null) -c
 GFX := tools/gbagfx/gbagfx
 AIF := tools/aif2pcm/aif2pcm
 MID := $(abspath tools/mid2agb/mid2agb)

From e0a9faacb58311b697cf704823f8279a077716f0 Mon Sep 17 00:00:00 2001
From: Garak <garakmon@gmail.com>
Date: Sat, 11 Aug 2018 21:29:54 -0400
Subject: [PATCH 4/4] sha1sum -> sha1

---
 Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Makefile b/Makefile
index 38e8fd71e..9637d98a8 100644
--- a/Makefile
+++ b/Makefile
@@ -31,7 +31,7 @@ LDFLAGS = -Map ../../$(MAP)
 
 LIB := -L ../../tools/agbcc/lib -lgcc -lc
 
-SHA1SUM := $(shell { command -v sha1sum || command -v shasum; } 2>/dev/null) -c
+SHA1 := $(shell { command -v sha1sum || command -v shasum; } 2>/dev/null) -c
 GFX := tools/gbagfx/gbagfx
 AIF := tools/aif2pcm/aif2pcm
 MID := $(abspath tools/mid2agb/mid2agb)