Replace Makefile with configure script

Since libweb depends on dynstr, this dependency can be already available
on the system, and therefore the CFLAGS and LDFLAGS should be updated
according to pkg-config(1), rather than hardcoding them to the source
tree.

1 files changed, 178 insertions, 0 deletions

diff --git a/configure b/configure
new file mode 100755
index 0000000..4d055f9
--- /dev/null
+++ b/configure
@@ -0,0 +1,178 @@
+#! /bin/sh
+
+set -e
+
+default_prefix=/usr/local
+prefix=$default_prefix
+default_CC='c99'
+# FILE_OFFSET_BITS=64 is required for large file support on 32-bit platforms.
+default_CFLAGS='-O1 -D_FILE_OFFSET_BITS=64 -MD -Iinclude -fPIC'
+default_LDFLAGS="-shared"
+
+CC=${CC:-$default_CC}
+
+help()
+{
+	cat <<-EOF
+$0 [OPTION ...]
+
+--prefix      Set installation directory [$default_prefix]
+
+Some influential environment variables:
+  CC                  C compiler [$default_CC]
+  CFLAGS              C compiler flags [$default_CFLAGS]
+  LDFLAGS             Link-time flags [$default_LDFLAGS]
+EOF
+}
+
+while true; do
+	split_arg=0
+
+	if printf "%s" "$1" | grep -e '=' > /dev/null
+	then
+		key="$(printf "%s" "$1" | cut -d '=' -f1)"
+		value="$(printf "%s" "$1" | cut -d '=' -f2)"
+		split_arg=1
+	else
+		key="$1"
+		value="$2"
+	fi
+
+	case "$key" in
+		--prefix ) prefix="$value"; shift; test $split_arg -eq 0 && shift ;;
+		-h | --help ) help; exit 0 ;;
+		* ) test "$1" != "" && help && exit 1 || break ;;
+	esac
+done
+
+if pkg-config dynstr
+then
+	in_tree_dynstr=0
+	proj_CFLAGS="$(pkg-config --cflags dynstr) $proj_CFLAGS"
+	proj_LDFLAGS="$(pkg-config --libs dynstr) $proj_LDFLAGS"
+else
+	echo "Info: dynstr not found. Using in-tree copy" >&2
+	in_tree_dynstr=1
+	proj_CFLAGS="-Idynstr/include $proj_CFLAGS"
+	proj_LDFLAGS="-Ldynstr -ldynstr $proj_LDFLAGS"
+fi
+
+proj_CFLAGS="$proj_CFLAGS $default_CFLAGS $CFLAGS"
+proj_LDFLAGS="$proj_LDFLAGS $default_LDFLAGS $LDFLAGS"
+
+cleanup()
+{
+	rm -f $F
+}
+
+F=/tmp/Makefile.libweb
+trap cleanup EXIT
+
+cat <<EOF > $F
+.POSIX:
+
+CC = ${CC}
+CFLAGS = $CFLAGS
+PROJ_CFLAGS = $proj_CFLAGS
+PROJ_LDFLAGS = $proj_LDFLAGS
+prefix = $prefix
+EOF
+
+cat <<"EOF" >> $F
+PROJECT = libweb
+PROJECT_A = $(PROJECT).a
+MAJOR_VERSION = 0
+MINOR_VERSION = 1
+PATCH_VERSION = 0
+VERSION = $(MAJOR_VERSION).$(MINOR_VERSION).$(PATCH_VERSION)
+PROJECT_SO = $(PROJECT).so.$(VERSION)
+PROJECT_SO_FQ = $(PROJECT).so.$(MAJOR_VERSION)
+PROJECT_SO_NV = $(PROJECT).so
+exec_prefix = $(prefix)
+includedir = $(prefix)/include
+datarootdir = $(prefix)/share
+mandir = $(datarootdir)/man
+libdir = $(exec_prefix)/lib
+pkgcfgdir = $(libdir)/pkgconfig
+O = -O1
+DEPS = $(OBJECTS:.o=.d)
+OBJECTS = \
+	form.o \
+	handler.o \
+	html.o \
+	http.o \
+	server.o \
+	wildcard_cmp.o
+
+all: $(PROJECT_A) $(PROJECT_SO)
+
+install: all $(pkgcfgdir)/libweb.pc
+	mkdir -p $(DESTDIR)$(includedir)
+	cp -R include/libweb $(DESTDIR)$(includedir)
+	chmod 0644  $(DESTDIR)$(includedir)/libweb/*.h
+	mkdir -p $(DESTDIR)$(libdir)
+	cp $(PROJECT_A) $(PROJECT_SO) $(DESTDIR)$(libdir)
+	chmod 0755 $(libdir)/$(PROJECT_A) $(DESTDIR)$(libdir)/$(PROJECT_SO)
+	ln -fs $(libdir)/$(PROJECT_SO) $(DESTDIR)$(libdir)/$(PROJECT_SO_FQ)
+	ln -fs $(libdir)/$(PROJECT_SO) $(DESTDIR)$(libdir)/$(PROJECT_SO_NV)
+	+cd doc && $(MAKE) install \
+		DESTDIR=$(DESTDIR) \
+		prefix=$(prefix) \
+		datarootdir=$(datarootdir) \
+		mandir=$(mandir)
+
+FORCE:
+
+.c.o:
+	$(CC) $(PROJ_CFLAGS) -c $< -o $@
+
+examples: FORCE
+	+cd examples && $(MAKE)
+
+$(PROJECT_A): $(OBJECTS)
+	$(AR) $(ARFLAGS) $@ $(OBJECTS)
+
+$(PROJECT_SO): $(OBJECTS)
+	$(CC) $(PROJ_LDFLAGS) $(OBJECTS) -o $@
+
+$(pkgcfgdir)/libweb.pc: libweb.pc
+	mkdir -p $(pkgcfgdir)
+	sed -e 's,/usr/local,$(prefix),' $< > $@
+	chmod 0644 $@
+EOF
+
+if [ $in_tree_dynstr -ne 0 ]
+then
+cat <<"EOF" >> $F
+DYNSTR = dynstr/libdynstr.a
+$(PROJECT): $(DYNSTR)
+$(DYNSTR): FORCE
+	+cd dynstr && $(MAKE) CC=$(CC)
+EOF
+fi
+
+cat <<"EOF" >> $F
+clean:
+	rm -f $(OBJECTS) $(DEPS)
+	+cd examples && $(MAKE) clean
+EOF
+
+if [ $in_tree_dynstr -ne 0 ]
+then
+cat <<"EOF" >> $F
+	+cd dynstr && $(MAKE) clean
+EOF
+fi
+
+cat <<"EOF" >> $F
+distclean: clean
+	rm -f $(PROJECT_A) $(PROJECT_SO)
+	+cd examples && $(MAKE) distclean
+	rm Makefile
+EOF
+
+cat <<"EOF" >> $F
+-include $(DEPS)
+EOF
+
+mv $F Makefile