Add configure script

8 files changed, 286 insertions, 267 deletions

diff --git a/.gitignore b/.gitignore
index feb75f4..2312339 100644
--- a/.gitignore
+++ b/.gitignore
@@ -80,4 +80,8 @@ _deps
 
 # Exclude temporary and backup files
 *.tmp
-*.bak
\ No newline at end of file
+*.bak
+
+# Postconfigured Makefile
+[Mm]akefile
+[Cc]onfig.h
diff --git a/Makefile b/Makefile
deleted file mode 100644
index b918707..0000000
--- a/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-# Determine OS
-OS = $(shell uname)
-MAKEFILE = gnu
-
-ifeq ($(OS), Darwin)
-    MAKEFILE = osx
-endif
-ifeq ($(OS), windows32)
-    MAKEFILE = mingw
-endif
-
-
-# Targets
-default:
-	$(MAKE) -f Makefile.$(MAKEFILE)
-
-all:
-	$(MAKE) -f Makefile.$(MAKEFILE) all
-
-dist:
-	$(MAKE) -f Makefile.$(MAKEFILE) dist
-
-clean:
-	$(MAKE) -f Makefile.$(MAKEFILE) clean
diff --git a/Makefile.gnu b/Makefile.gnu
deleted file mode 100644
index 42547f6..0000000
--- a/Makefile.gnu
+++ /dev/null
@@ -1,49 +0,0 @@
-# GNU makefile
-
-
-# User configuration
-DESTDIR ?= /local
-CFLAGS ?= -fPIC -O2 -Iinclude
-LDFLAGS ?= -lm
-TARGET = bh
-ENABLE_MT = 1
-
-
-# System configuration
-include Makefile.srcs
-
-SRCS += $(SRCS_POSIX)
-ifeq ($(ENABLE_MT), 1)
-	SRCS += $(SRCS_POSIX_MT)
-	CFLAGS += -pthread
-	LDFLAGS += -lpthread
-else
-	SRCS += $(SRCS_DUMMY_MT)
-endif
-
-INCDIR ?= $(DESTDIR)/usr/include
-INSTALLDIR ?= $(DESTDIR)/usr/lib
-STATICLIB = lib$(TARGET).a
-SHAREDLIB = lib$(TARGET).so
-OBJS = $(SRCS:.c=.o)
-
-
-# Targets
-all: $(STATICLIB) $(SHAREDLIB)
-
-dist: $(STATICLIB) $(SHAREDLIB)
-	mkdir -p dist
-	cp *.a dist/
-	cp *.so dist/
-
-$(STATICLIB): $(OBJS)
-	$(AR) r $@ $(OBJS)
-
-$(SHAREDLIB): $(OBJS)
-	$(CC) -s -shared $(LDFLAGS) -o $@ $(OBJS)
-
-.c.o:
-	$(CC) $(CFLAGS) -c $< -o $@
-
-clean:
-	-rm -rf $(OBJS) $(STATICLIB) $(SHAREDLIB) dist
diff --git a/Makefile.mingw b/Makefile.mingw
deleted file mode 100644
index 836c423..0000000
--- a/Makefile.mingw
+++ /dev/null
@@ -1,50 +0,0 @@
-# GNU makefile
-
-
-# User configuration
-DESTDIR ?= /local
-CFLAGS ?= -fPIC -O2 -Iinclude
-LDFLAGS ?= -lm
-TARGET = bh
-ENABLE_MT = 1
-CC = gcc
-
-
-# System configuration
-include Makefile.srcs
-
-SRCS += $(SRCS_WIN32)
-ifeq ($(ENABLE_MT), 1)
-	SRCS += $(SRCS_WIN32_MT)
-	CFLAGS += -pthread
-	LDFLAGS += -lpthread
-else
-	SRCS += $(SRCS_DUMMY_MT)
-endif
-
-INCDIR ?= $(DESTDIR)/usr/include
-INSTALLDIR ?= $(DESTDIR)/usr/lib
-STATICLIB = lib$(TARGET).a
-SHAREDLIB = lib$(TARGET).so
-OBJS = $(SRCS:.c=.o)
-
-
-# Targets
-all: $(STATICLIB) $(SHAREDLIB)
-
-dist: $(STATICLIB) $(SHAREDLIB)
-	mkdir -p dist
-	cp *.a dist/
-	cp *.so dist/
-
-$(STATICLIB): $(OBJS)
-	$(AR) r $@ $(OBJS)
-
-$(SHAREDLIB): $(OBJS)
-	$(CC) -s -shared $(LDFLAGS) -o $@ $(OBJS)
-
-.c.o:
-	$(CC) $(CFLAGS) -c $< -o $@
-
-clean:
-	-rm -rf $(OBJS) $(STATICLIB) $(SHAREDLIB) dist
diff --git a/Makefile.osx b/Makefile.osx
deleted file mode 100644
index 5364274..0000000
--- a/Makefile.osx
+++ /dev/null
@@ -1,50 +0,0 @@
-# GNU makefile
-
-
-# User configuration
-DESTDIR ?= /local
-CFLAGS ?= -fPIC -O2 -Iinclude
-LDFLAGS ?= -lm
-TARGET = bh
-ENABLE_MT = 1
-CC = clang
-
-
-# System configuration
-include Makefile.srcs
-
-SRCS += $(SRCS_POSIX)
-ifeq ($(ENABLE_MT), 1)
-	SRCS += $(SRCS_POSIX_MT)
-	CFLAGS += -pthread
-	LDFLAGS += -lpthread
-else
-	SRCS += $(SRCS_DUMMY_MT)
-endif
-
-INCDIR ?= $(DESTDIR)/usr/include
-INSTALLDIR ?= $(DESTDIR)/usr/lib
-STATICLIB = lib$(TARGET).a
-SHAREDLIB = lib$(TARGET).so
-OBJS = $(SRCS:.c=.o)
-
-
-# Targets
-all: $(STATICLIB) $(SHAREDLIB)
-
-dist: $(STATICLIB) $(SHAREDLIB)
-	mkdir -p dist
-	cp *.a dist/
-	cp *.so dist/
-
-$(STATICLIB): $(OBJS)
-	$(AR) r $@ $(OBJS)
-
-$(SHAREDLIB): $(OBJS)
-	$(CC) -s -shared $(LDFLAGS) -o $@ $(OBJS)
-
-.c.o:
-	$(CC) $(CFLAGS) -c $< -o $@
-
-clean:
-	-rm -rf $(OBJS) $(STATICLIB) $(SHAREDLIB) dist
diff --git a/Makefile.srcs b/Makefile.srcs
deleted file mode 100644
index 3d0d91a..0000000
--- a/Makefile.srcs
+++ /dev/null
@@ -1,92 +0,0 @@
-# Source files
-
-SRCS = src/Algo.c \
-	src/Args.c \
-	src/Buffer.c \
-	src/Bytes.c \
-	src/Color.c \
-	src/Hashmap.c \
-	src/IO.c \
-	src/Math/Box2f.c \
-	src/Math/Box3f.c \
-	src/Math/Line.c \
-	src/Math/Mat3f.c \
-	src/Math/Mat4f.c \
-	src/Math/Misc.c \
-	src/Math/Plane.c \
-	src/Math/Quat4f.c \
-	src/Math/Ray2f.c \
-	src/Math/Ray3f.c \
-	src/Math/Vec2f.c \
-	src/Math/Vec2i.c \
-	src/Math/Vec3f.c \
-	src/Math/Vec3i.c \
-	src/Math/Vec4f.c \
-	src/Math/Vec4i.c \
-	src/Platform/Spinlock.c \
-	src/Queue.c \
-	src/String/Float.c \
-	src/String/Int.c \
-	src/String/Unicode.c \
-	src/Util.c
-
-SRCS_DUMMY = src/Platform/Dummy/File.c
-
-SRCS_DUMMY_MT = src/Platform/Dummy/Condition.c \
-	src/Platform/Dummy/Mutex.c \
-	src/Platform/Dummy/Semaphore.c \
-	src/Platform/Dummy/Thread.c \
-	src/Platform/Dummy/Tss.c
-
-SRCS_POSIX = src/Platform/Posix/File.c
-
-SRCS_POSIX_MT = src/Platform/Posix/Condition.c \
-	src/Platform/Posix/Mutex.c \
-	src/Platform/Posix/Semaphore.c \
-	src/Platform/Posix/Thread.c \
-	src/Platform/Posix/Tss.c
-
-SRCS_WIN32 = src/Platform/Win32/File.c
-
-SRCS_WIN32_MT = src/Platform/Win32/Condition.c \
-	src/Platform/Win32/Mutex.c \
-	src/Platform/Win32/Semaphore.c \
-	src/Platform/Win32/Thread.c \
-	src/Platform/Win32/Tss.c
-
-INCS = include/BH/Algo.h \
-	include/BH/Args.h \
-	include/BH/Common.h \
-	include/BH/Hashmap.h \
-	include/BH/IO.h \
-	include/BH/Math/Box2f.h \
-	include/BH/Math/Box3f.h \
-	include/BH/Math/Line.h \
-	include/BH/Math/Mat3f.h \
-	include/BH/Math/Mat4f.h \
-	include/BH/Math/Misc.h \
-	include/BH/Math/Plane.h \
-	include/BH/Math/Quat.h \
-	include/BH/Math/Ray2f.h \
-	include/BH/Math/Ray3f.h \
-	include/BH/Math/Vec2f.h \
-	include/BH/Math/Vec2i.h \
-	include/BH/Math/Vec3f.h \
-	include/BH/Math/Vec3i.h \
-	include/BH/Math/Vec4f.h \
-	include/BH/Math/Vec4i.h \
-	include/BH/Queue.h \
-	include/BH/String.h \
-	include/BH/Thread.h \
-	include/BH/Unicode.h \
-	include/BH/Util.h
-
-INCS_DUMMY_MT = src/Platform/Dummy/Thread.h
-
-INCS_POSIX_MT = src/Platform/Posix/Thread.h
-
-INCS_WIN32_MT = src/Platform/Win32/Thread.h
-
-SRCS_UNIT = unit/src/Unit.c
-
-INCS_UNIT = unit/include/BH/Unit.h
diff --git a/configure b/configure
new file mode 100755
index 0000000..4bc1c0b
--- /dev/null
+++ b/configure
@@ -0,0 +1,279 @@
+#!/bin/sh
+# Configure script by blankhex
+
+# Global variables
+source_path=""
+cc=$CC
+ar=$AR
+enable_dynamic="no"
+enable_mt="no"
+enable_lfs="no"
+enable_tests="no"
+use_clock_gettime="no"
+
+if [ -z "$cc" ]; then cc=gcc; fi
+if [ -z "$ld" ]; then ld=gcc; fi
+if [ -z "$ar" ]; then ar=ar; fi
+
+# Internal functions
+assign_option() {
+    set -- ${1#--} $2
+    set -- ${2:-${1%%=*}} ${1#*=}
+    eval "$1=$2"
+}
+
+assign_toggle() {
+    set -- ${1#--} $2 $3
+    set -- ${2:-${1%%=*}} ${1#*=} $3 $1
+    if test $4 = $2; then set -- $1 $3; fi
+    eval "$1=$2"
+}
+
+# Option parsing
+for option do
+    case $option in
+        --cc=*) assign_option "$option"; ;;
+        --ar=*) assign_option "$option"; ;;
+        --extra-cflags=*) assign_option "$option" extra_cflags; ;;
+        --extra-ldflags=*) assign_option "$option" extra_ldflags; ;;
+        --platform=*) assign_option "$option"; ;;
+        --enable-dynamic|--enable-dynamic=*) assign_toggle "$option" enable_dynamic yes; ;;
+        --enable-mt|--enable-mt=*) assign_toggle "$option" enable_mt yes; ;;
+        --enable-lfs|--enable-lfs=*) assign_toggle "$option" enable_lfs yes; ;;
+        --enable-tests|--enable-tests=*) assign_toggle "$option" enable_tests yes; ;;
+        --use-clock_gettime|--use-clock_gettime=*) assign_toggle "$option" use_clock_gettime yes; ;;
+        --source-path=*) assign_option "$option" source_path; ;;
+        --help|-h) display_help="yes"; ;;
+        *) echo "configure: WARNING: unrecognized option $option"; ;;
+    esac
+done
+
+# Help message
+show_help() {
+cat << EOF
+Usage: configure [OPTIONS]
+
+Options:
+  --help                            Print this message
+  --source-path=                    Path to the source code
+  --cc=CC                           C compiler
+  --ar=AR                           Library archiver
+  --extra-cflags=                   Extra compiler flags
+  --extra-ldflags=                  Extra linker flags
+  --platform=[Posix|Win32|Dummy]    Specify target platform
+  --enable-dynamic[=yes|no]         Make dynamic library
+  --enable-mt[=yes|no]              Enable multithreading support
+  --enable-lfs[=yes|no]             Enable large file support
+  --enable-tests[=yes|no]           Enable unit tests
+  --use-clock_gettime[=yes|no]      Use of clock_gettime regardless of the support
+EOF
+exit 1
+}
+
+if [ -n "$display_help" ]; then show_help; fi
+
+# Detect OS and platform, because it wasn't specified
+os="Unknown"
+if [ -z "$platform" ]; then 
+    case $(uname) in
+        Darwin) os="MacOS"; platform="Posix"; ;;
+        Linux) os="Linux"; platform="Posix"; ;;
+        *BSD) os="BSD"; platform="Posix"; ;;
+        CYGWIN*|MINGW*|MSYS*) os="Windows"; platform="Win32"; ;;
+        *) os="Unknown"; platform="Dummy"; ;;
+    esac
+fi
+
+# Validate platforms
+case $platform in
+    Posix) ;;
+    Win32) ;;
+    Dummy) ;;
+    *) echo "configure: WARNING: unrecognized platform $platform"; platform=Dummy; ;;
+esac
+
+# Make build magic
+cflags="-fPIC -I${source_path}include -I."
+ldflags="-lm -shared"
+cflags="$cflags $extra_cflags"
+ldflags="$ldflags $extra_ldflags"
+
+echo "OS:                       $os"
+echo "Platform:                 $platform"
+echo "Source path:              $source_path"
+echo "CC:                       $cc"
+echo "AR:                       $ar"
+echo "CFLAGS:                   $cflags"
+echo "LDFLAGS:                  $ldflags"
+echo "Enable multithreading:    $enable_mt"
+echo "Enable long file support: $enable_lfs"
+echo "Enable tests:             $enable_tests"
+echo "Build dynamic library:    $enable_dynamic"
+echo "Use clock_gettime:        $use_clock_gettime"
+
+# Make sure that build directories exist
+mkdir src src/Platform src/Math src/String 2> /dev/null
+
+# Build source list
+sources="${source_path}src/Platform/Spinlock.c"
+
+# Platform dependant sources
+if [ "$platform" = "Posix" ]; then
+    exe=""
+    sources="$sources:${source_path}src/Platform/Posix/File.c"
+    mkdir src/Platform/Posix 2> /dev/null
+elif [ "$platform" = "Win32" ]; then
+    exe=".exe"
+    sources="$sources:${source_path}src/Platform/Win32/File.c"
+    mkdir src/Platform/Win32 2> /dev/null
+else
+    exe=""
+    sources="$sources:${source_path}src/Platform/Dummy/File.c"
+    mkdir src/Platform/Dummy 2> /dev/null
+fi
+
+if [ "$platform" = "Posix" ] && [ "$enable_mt" = "yes" ]; then
+    sources="$sources:${source_path}src/Platform/Posix/Condition.c"
+    sources="$sources:${source_path}src/Platform/Posix/Mutex.c"
+    sources="$sources:${source_path}src/Platform/Posix/Semaphore.c"
+    sources="$sources:${source_path}src/Platform/Posix/Thread.c"
+    sources="$sources:${source_path}src/Platform/Posix/Tss.c"
+    mkdir src/Platform/Posix 2> /dev/null
+elif [ "$platform" = "Win32" ] && [ "$enable_mt" = "yes" ]; then
+    sources="$sources:${source_path}src/Platform/Win32/Condition.c"
+    sources="$sources:${source_path}src/Platform/Win32/Mutex.c"
+    sources="$sources:${source_path}src/Platform/Win32/Semaphore.c"
+    sources="$sources:${source_path}src/Platform/Win32/Thread.c"
+    sources="$sources:${source_path}src/Platform/Win32/Tss.c"
+    mkdir src/Platform/Win32 2> /dev/null
+else
+    sources="$sources:${source_path}src/Platform/Dummy/Condition.c"
+    sources="$sources:${source_path}src/Platform/Dummy/Mutex.c"
+    sources="$sources:${source_path}src/Platform/Dummy/Semaphore.c"
+    sources="$sources:${source_path}src/Platform/Dummy/Thread.c"
+    sources="$sources:${source_path}src/Platform/Dummy/Tss.c"
+    mkdir src/Platform/Dummy 2> /dev/null
+fi
+
+# Platform independant sources
+for file in ${source_path}src/*.c; do
+    sources="$sources:$file"
+done
+
+for file in ${source_path}src/Math/*.c; do
+    sources="$sources:$file"
+done
+
+for file in ${source_path}src/String/*.c; do
+    sources="$sources:$file"
+done
+
+# Tests
+if [ "$enable_tests" = "yes" ]; then
+    tests=""
+    mkdir test test/src 2> /dev/null
+    for file in "${source_path}test/src/*.c"; do
+        if [ -n "$tests" ]; then tests="$tests:$file"
+        else tests="$file"; fi
+    done
+fi
+
+# Generate variables
+echo "CC=$cc" > Makefile
+echo "CFLAGS=$cflags" >> Makefile
+echo "LDFLAGS=$ldflags" >> Makefile
+echo "STATICLIB=libbh.a" >> Makefile
+
+if [ "$enable_dynamic" = "yes" ]; then
+    echo "DYNAMICLIB=libbh.so" >> Makefile
+fi
+
+# Set a list of objects
+printf "OBJS=" >> Makefile
+(
+    IFS=":"
+    for source in $sources; do
+        object=${source%%.c}.o
+        object=${object#${source_path}}
+        echo " \\" >> Makefile 
+        printf "  %s" "$object" >> Makefile 
+    done
+)
+printf "\n\n" >> Makefile
+
+# Check if dynamic linking is enabled and add rules
+if [ "$enable_dynamic" = "yes" ]; then
+    printf "all: static dynamic\n\n" >> Makefile
+    printf "dynamic: \$(DYNAMICLIB)\n\n" >> Makefile
+    printf "\$(DYNAMICLIB): \$(OBJS)\n" >> Makefile
+    printf "\t\$(CC) \$(LDFLAGS) \$(OBJS) -o \$(DYNAMICLIB)\n\n" >> Makefile
+else
+    printf "all: static\n\n" >> Makefile
+fi
+
+# Add rules for static linking
+printf "static: \$(STATICLIB)\n\n" >> Makefile
+printf "\$(STATICLIB): \$(OBJS)\n" >> Makefile
+printf "\t\$(AR) r \$(STATICLIB) \$(OBJS)\n\n" >> Makefile
+
+# Generate rules for tests
+if [ "$enable_tests" = "yes" ]; then
+(
+    IFS=":"
+    for source in $tests; do
+        object=${source%%.c}${exe}
+        object=${object#${source_path}}
+        printf "%s: %s \$(STATICLIB)\n" $object $source >> Makefile
+        printf "\t\$(CC) \$(CFLAGS) -I${source_path}unit/include %s %s \$(STATICLIB) -o %s\n\n" "$source" "${source_path}unit/src/Unit.c" "$object" >> Makefile
+    done
+)
+
+printf "tests: " >> Makefile
+(
+    IFS=":"
+    for source in $tests; do
+        object=${source%%.c}${exe}
+        object=${object#${source_path}}
+        echo " \\" >> Makefile 
+        printf "  %s" "$object" >> Makefile 
+    done
+)
+printf "\n\n" >> Makefile
+fi
+
+# Generate rules for main objects
+(
+    IFS=":"
+    for source in $sources; do
+        object=${source%%.c}.o
+        object=${object#${source_path}}
+        printf "$object: $source\n" >> Makefile 
+        printf "\t\$(CC) -c \$(CFLAGS) \$< -o \$@\n\n" >> Makefile
+    done
+)
+printf "\n\n" >> Makefile
+
+# Generate clean rules
+printf "clean:\n" >> Makefile
+printf "\t-rm -f \$(OBJS) \$(STATICLIB)" >> Makefile
+if [ "$enable_dynamic" = "yes" ]; then
+    printf " \$(DYNAMICLIB)" >> Makefile
+fi
+
+if [ "$enable_tests" = "yes" ]; then
+(
+    IFS=":"
+    for source in $tests; do
+        object=${source%%.c}${exe}
+        object=${object#${source_path}}
+        printf " %s" "$object" >> Makefile 
+    done
+)
+fi
+printf "\n\n" >> Makefile
+
+# Generate internal config.h
+printf "#ifndef BH_SRC_CONFIG_H\n#define BH_SRC_CONFIG_H\n\n" > Config.h
+if [ "$use_clock_gettime" ]; then printf "#define BH_USE_CLOCK_GETTIME\n" >> Config.h; fi
+if [ "$enable_lfs" ]; then printf "#define BH_ENABLE_LFS\n" >> Config.h; fi
+printf "\n#endif /* BH_SRC_CONFIG_H */\n" >> Config.h
diff --git a/src/Platform/Posix/Timespec.h b/src/Platform/Posix/Timespec.h
index 4bd673f..ef7f22d 100644
--- a/src/Platform/Posix/Timespec.h
+++ b/src/Platform/Posix/Timespec.h
@@ -2,6 +2,7 @@
 #define BH_PLATFORM_POSIX_TIMESPEC_H
 
 
+#include <Config.h>
 #include <BH/Thread.h>
 #include <sys/time.h>
 #include <time.h>
@@ -10,7 +11,7 @@
 static int convertToTimespec(struct timespec *ts,
                               uint32_t timeout)
 {
-#ifdef USE_CLOCK_GETTIME
+#if (_POSIX_TIMERS > 0) || defined(BH_USE_CLOCK_GETTIME)
     if (clock_gettime(CLOCK_REALTIME, ts))
         return BH_ERROR;
 #else