add ./configure

Signed-off-by: Mattias Andrée <maandree@operamail.com>

3 files changed, 155 insertions, 1 deletions

diff --git a/.gitignore b/.gitignore
index 4f7dd78..bf0de41 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,5 @@ obj/
 *.gch
 *.out
 *.o
+/config.mk
 
diff --git a/Makefile b/Makefile
index f1d2536..5e435ad 100644
--- a/Makefile
+++ b/Makefile
@@ -4,6 +4,10 @@
 # without any warranty.
 
 
+# Include configurations from `./configure`.
+include config.mk
+
+
 # The package path prefix, if you want to install to another root, set DESTDIR to that root.
 PREFIX ?= /usr
 # The library path excluding prefix.
@@ -58,7 +62,7 @@ endif
 C_FLAGS = $(OPTIMISE) $(WARN) -std=$(STD) $(CPPFLAGS) $(CFLAGS) $(LDFLAGS)  \
           -ftree-vrp -fstrict-aliasing -fipa-pure-const -fstack-usage       \
           -fstrict-overflow -funsafe-loop-optimizations -fno-builtin        \
-	  $(DEBUG_FLAGS)
+	  $(DEBUG_FLAGS) $(DEFINITIONS)
 
 
 # Object files for the library.
diff --git a/configure b/configure
new file mode 100755
index 0000000..86e85b6
--- /dev/null
+++ b/configure
@@ -0,0 +1,149 @@
+#!/bin/sh
+
+# Copying and distribution of this file, with or without modification,
+# are permitted in any medium without royalty provided the copyright
+# notice and this notice are preserved.  This file is offered as-is,
+# without any warranty.
+
+
+have_debug='No, enable with --debug'
+have_dummy='No, enable with --enable-dummy'
+have_randr='No, enable with --enable-randr'
+have_vidmode='No, enable with --enable-vidmode'
+have_drm='No, enable with --enable-drm'
+have_w32gdi='No, enable with --enable-w32gdi[=fake]'
+have_quartz='No, enable with --enable-quartz[=fake]'
+
+enable_debug=0
+enable_dummy=0
+enable_randr=0
+enable_vidmode=0
+enable_drm=0
+enable_w32gdi=0
+enable_quartz=0
+fake_w32gdi=0
+fake_quartz=0
+
+
+for arg in "$@"; do
+    case "${arg}" in
+	(--linux=developer|--developer)  enable_debug=1
+					 enable_dummy=1
+					 enable_vidmode=1
+					 enable_randr=1
+					 enable_drm=1
+					 fake_w32gdi=1
+					 fake_quartz=1
+					 ;;
+	(--linux)                        enable_vidmode=1
+					 enable_randr=1
+					 enable_drm=1
+					 ;;
+	(--*bsd=developer)               enable_debug=1
+					 enable_dummy=1
+					 enable_vidmode=1
+					 enable_randr=1
+					 fake_w32gdi=1
+					 fake_quartz=1
+					 ;;
+	(--*bsd)                         enable_vidmode=1
+					 enable_randr=1
+					 ;;
+	(--windows=developer)            enable_debug=1
+					 enable_dummy=1
+					 enable_w32gdi=1
+					 ;;
+	(--windows)                      enable_w32gdi=1
+					 ;;
+	(--mac-os-x=developer)           enable_debug=1
+					 enable_dummy=1
+					 enable_quartz=1
+					 ;;
+	(--mac-os-x)                     enable_quartz=1
+					 ;;
+	(--debug)                        enable_debug=1    ;;
+	(--enable-dummy)                 enable_dummy=1    ;;
+	(--enable-randr)                 enable_randr=1    ;;
+	(--enable-vidmode)               enable_vidmode=1  ;;
+	(--enable-drm)                   enable_drm=1      ;;
+	(--enable-w32gdi)                enable_w32gdi=1   ;;
+	(--enable-quartz)                enable_quartz=1   ;;
+	(--enable-w32gdi=fake)           fake_w32gdi=1     ;;
+	(--enable-quartz=fake)           fake_quartz=1     ;;
+	(*)
+	    echo "$0: unrecognised option: ${arg}" >&2
+	    exit 1
+	    ;;
+    esac
+done
+
+
+exec 3> "$(dirname "$0")/config.mk"
+echo 'DEFINITIONS =' >&3
+
+if [ ${fake_w32gdi} = 1 ]; then
+    enable_w32gdi=1
+fi
+if [ ${fake_quartz} = 1 ]; then
+    enable_quartz=1
+fi
+if [ ${enable_debug} = 1 ]; then
+    echo "DEBUG = y" >&3
+    have_debug='Yes'
+fi
+if [ ${enable_dummy} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_DUMMY' >&3
+    have_dummy='Yes'
+fi
+if [ ${enable_randr} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_RANDR' >&3
+    have_randr='Yes'
+fi
+if [ ${enable_vidmode} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_VIDMODE' >&3
+    have_vidmode='Yes'
+fi
+if [ ${enable_drm} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_LINUX_DRM' >&3
+    have_drm='Yes'
+fi
+if [ ${enable_w32gdi} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_W32_GDI' >&3
+    have_w32gdi='Yes'
+fi
+if [ ${enable_quartz} = 1 ]; then
+    echo 'DEFINITIONS += -DHAVE_GAMMA_METHOD_QUARTZ_CORE_GRAPHICS' >&3
+    have_quartz='Yes'
+fi
+if [ ${fake_w32gdi} = 1 ]; then
+    echo 'DEFINITIONS += -FAKE_GAMMA_METHOD_W32_GDI' >&3
+    if [ ${enable_randr} = 1 ]; then
+	have_w32gdi='Yes, fake via the RandR protocol for X'
+    else
+	have_w32gdi='Yes, fake via dummy method, `/dev/null`-style'
+    fi
+fi
+if [ ${fake_quartz} = 1 ]; then
+    echo 'DEFINITIONS += -FAKE_GAMMA_METHOD_QUARTZ_CORE_GRAPHICS' >&3
+    if [ ${enable_randr} = 1 ]; then
+	have_quartz='Yes, fake via the RandR protocol for X'
+    else
+	have_quartz='Yes, fake via dummy method, `/dev/null`-style'
+    fi
+fi
+
+exec 3<&-
+
+
+echo 'libgamma have not been configured.'
+echo
+echo "  Debug mode:               ${have_debug}"
+echo "  Dummy method:             ${have_dummy}"
+echo "  X.org via RandR:          ${have_randr}"
+echo "  X.org via VidMode:        ${have_vidmode}"
+echo "  Linux DRM:                ${have_drm}"
+echo "  Windows GDI:              ${have_w32gdi}"
+echo "  Quartz via CoreGraphics:  ${have_quartz}"
+echo
+echo 'Compile with `make`.'
+