Merge pull request #267 from garakmon/master

macOS support

INSTALL.md

@@ -8,16 +8,22 @@ Make sure that there is an environment variable called DEVKITARM with the path o
 
 Then get the compiler from https://github.com/pret/agbcc and run the following commands.
 
-	./build.sh
-	./install.sh PATH_OF_POKEEMERALD_DIRECTORY
+```
+./build.sh
+./install.sh PATH_OF_POKEEMERALD_DIRECTORY
+```
 
 Then in the pokeemerald directory, build the tools.
 
-	./build_tools.sh
+```
+./build_tools.sh
+```
 
 Finally, build the rom.
 
-	make
+```
+make
+```
 
 # Windows
 
@@ -26,3 +32,65 @@ Install [**devkitARM**](http://devkitpro.org/wiki/Getting_Started/devkitARM).
 Then get the compiled tools from https://github.com/pret/pokeruby-tools. Copy the `tools/` folder over the `tools/` folder in your pokeemerald directory.
 
 You can then build pokeemerald using `make` in the MSYS environment provided with devkitARM.
+
+# Mac
+
+Installing pokeemerald on a Mac requires macOS >= 10.12 (Sierra or higher).
+
+Download a [devkitPRO pacman](https://github.com/devkitPro/pacman/releases/tag/v1.0.0)
+
+Run the following commands in Terminal:
+
+
+```
+xcode-select --install
+
+sudo dkp-pacman -S devkitARM 
+
+export DEVKITPRO=/opt/devkitpro
+echo "export DEVKITPRO=$DEVKITPRO" >> ~/.bashrc
+export DEVKITARM=$DEVKITPRO/devkitARM
+echo "export DEVKITARM=$DEVKITARM" >> ~/.bashrc
+echo "if [ -f ~/.bashrc ]; then . ~/.bashrc; fi" >> ~/.bash_profile
+
+git clone https://github.com/pret/pokeemerald
+git clone https://github.com/pret/agbcc
+
+cd agbcc/
+./build.sh
+./install.sh ../pokeemerald 
+
+cd ../pokeemerald
+./build_tools.sh
+```
+
+And build the ROM with `make`.
+
+# Faster builds
+
+After the first build, subsequent builds are faster. You can further speed up the build:
+
+## Parallel build
+
+This significantly speeds up the build on modern machines.
+
+By default `make` only runs a single thread. You can tell `make` to run on multiple threads with `make -j`. See the manfile for usage (`man make`).
+
+The optimal value for `-j` is the number of logical cores on your machine. You can run `nproc` to see the exact number.
+
+```
+$ 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`
+
+

Makefile

@@ -25,14 +25,13 @@ ASFLAGS := -mcpu=arm7tdmi
 CC1             := tools/agbcc/bin/agbcc
 override CFLAGS += -mthumb-interwork -Wimplicit -Wparentheses -Werror -O2 -fhex-asm
 
-CPPFLAGS := -I tools/agbcc/include -iquote include -nostdinc -undef
+CPPFLAGS := -I tools/agbcc/include -I tools/agbcc -iquote include -nostdinc -undef
 
 LDFLAGS = -Map ../../$(MAP)
 
 LIB := -L ../../tools/agbcc/lib -lgcc -lc
 
-SHA1 := sha1sum -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)

tools/aif2pcm/Makefile

@@ -1,6 +1,6 @@
 CC = gcc
 
-CFLAGS = -Wall -Wextra -Wno-switch -Werror -std=c11 -O2 -s
+CFLAGS = -Wall -Wextra -Wno-switch -Werror -std=c11 -O2
 
 LIBS = -lm
 

tools/aif2pcm/main.c

@@ -469,12 +469,12 @@ do { \
 void aif2pcm(const char *aif_filename, const char *pcm_filename, bool compress)
 {
 	struct Bytes *aif = read_bytearray(aif_filename);
-	AifData aif_data = {0};
+	AifData aif_data = {0,0,0,0,0,0,0};
 	read_aif(aif, &aif_data);
 
 	int header_size = 0x10;
 	struct Bytes *pcm;
-	struct Bytes output = {0};
+	struct Bytes output = {0,0};
 
 	if (compress)
 	{

tools/bin2c/Makefile

@@ -1,6 +1,6 @@
 CC = gcc
 
-CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -s
+CFLAGS = -Wall -Wextra -Werror -std=c11 -O2
 
 .PHONY: clean
 

tools/gbagfx/Makefile

@@ -1,6 +1,6 @@
 CC = gcc
 
-CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -s -DPNG_SKIP_SETJMP_CHECK
+CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -DPNG_SKIP_SETJMP_CHECK
 
 LIBS = -lpng -lz
 

tools/mid2agb/Makefile

@@ -1,6 +1,6 @@
 CXX := g++
 
-CXXFLAGS := -std=c++11 -O2 -s -Wall -Wno-switch -Werror
+CXXFLAGS := -std=c++11 -O2 -Wall -Wno-switch -Werror
 
 SRCS := agb.cpp error.cpp main.cpp midi.cpp tables.cpp
 

tools/preproc/Makefile

@@ -1,6 +1,6 @@
 CXX := g++
 
-CXXFLAGS := -std=c++11 -O2 -s -Wall -Wno-switch -Werror
+CXXFLAGS := -std=c++11 -O2 -Wall -Wno-switch -Werror
 
 SRCS := asm_file.cpp c_file.cpp charmap.cpp preproc.cpp string_parser.cpp \
 	utf8.cpp

tools/ramscrgen/Makefile

@@ -1,6 +1,6 @@
 CXX := g++
 
-CXXFLAGS := -std=c++11 -O2 -s -Wall -Wno-switch -Werror
+CXXFLAGS := -std=c++11 -O2 -Wall -Wno-switch -Werror
 
 SRCS := main.cpp sym_file.cpp elf.cpp
 

tools/rsfont/Makefile

@@ -1,6 +1,6 @@
 CC = gcc
 
-CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -s -DPNG_SKIP_SETJMP_CHECK
+CFLAGS = -Wall -Wextra -Werror -std=c11 -O2 -DPNG_SKIP_SETJMP_CHECK
 
 LIBS = -lpng -lz
 

tools/scaninc/Makefile

@@ -1,6 +1,6 @@
 CXX = g++
 
-CXXFLAGS = -Wall -Werror -std=c++11 -O2 -s
+CXXFLAGS = -Wall -Werror -std=c++11 -O2
 
 SRCS = scaninc.cpp c_file.cpp asm_file.cpp