# -*- makefile-gmake -*-

########################################################################
# Detect the PLATFORM with uname.

ifndef PLATFORM
ifeq ($(shell uname),Darwin)
PLATFORM=macosx
else
ifeq ($(shell uname),FreeBSD)
PLATFORM=bsd
else
ifeq ($(shell uname),NetBSD)
PLATFORM=bsd
else
ifeq ($(shell uname),OpenBSD)
PLATFORM=bsd
else
ifeq ($(shell uname),DragonFly)
PLATFORM=bsd
else
ifeq ($(shell uname -o),Msys)
PLATFORM=mingw
SOLIBDIR = $(BINDIR)
DIFFOPTS = -b
else
ifeq ($(shell uname -o),Cygwin)
PLATFORM=cygwin
SOLIBDIR = $(BINDIR)
DIFFOPTS = -b
else
ifeq ($(shell uname -o),GNU/Linux)
PLATFORM=linux
else
PLATFORM=unix
endif
endif
endif
endif
endif
endif
endif
endif

########################################################################
# Set default variables for the platform.

LIBDL = -ldl
SO_VERSIONED_SUFFIX = $(SO).$(SOVERSION)
SO_MAJOR_VERSIONED_SUFFIX = $(SO).$(SOVERSION_MAJOR)

ifeq ($(PLATFORM),macosx)
SO  = .dylib
SO_VERSIONED_SUFFIX = .$(SOVERSION)$(SO)
SO_MAJOR_VERSIONED_SUFFIX = .$(SOVERSION_MAJOR)$(SO)
EXE =
CLIBFLAGS =
CLINKFLAGS = -dynamiclib
STATICFLAGS = -DSEXP_USE_DL=0  # -static-libgcc
LIBCHIBI_FLAGS = -install_name $(DESTDIR)$(SOLIBDIR)/libchibi-scheme.$(SOVERSION).dylib
else
ifeq ($(PLATFORM),bsd)
SO  = .so
EXE =
CLIBFLAGS = -fPIC
CLINKFLAGS = -shared
LIBDL = 
else
ifeq ($(PLATFORM),mingw)
SO  = .dll
EXE = .exe
CC = gcc
CLIBFLAGS =
CLINKFLAGS = -shared
CPPFLAGS += -DSEXP_USE_STRING_STREAMS=0 -DBUILDING_DLL
LIBCHIBI_FLAGS = -Wl,--out-implib,libchibi-scheme$(SO).a
STATICFLAGS = -DSEXP_USE_DL=0
LIBDL = 
else
ifeq ($(PLATFORM),cygwin)
SO  = .dll
EXE = .exe
CC = gcc
CLIBFLAGS =
CLINKFLAGS = -shared
CPPFLAGS += -DSEXP_USE_STRING_STREAMS=0
LIBCHIBI_FLAGS = -Wl,--out-implib,libchibi-scheme$(SO).a
else
SO  = .so
EXE =
CLIBFLAGS = -fPIC
CLINKFLAGS = -shared
STATICFLAGS = -static -DSEXP_USE_DL=0
LIBCHIBI_FLAGS = -Wl,-soname,libchibi-scheme$(SO).$(SOVERSION_MAJOR)
ifeq ($(PLATFORM),BSD)
LIBDL=
RLDFLAGS=-Wl,-R$(DESTDIR)$(LIBDIR)
endif
endif
endif
endif
endif
endif

ifeq ($(PLATFORM),unix)
#RLDFLAGS=-rpath $(LIBDIR)
RLDFLAGS=-Wl,-R$(DESTDIR)$(LIBDIR)
endif

########################################################################
# Check for headers (who needs autoconf?)

ifndef $(SEXP_USE_NTP_GETTIME)
SEXP_USE_NTP_GETTIME := $(shell echo "main(){struct ntptimeval n; ntp_gettime(&n);}" | gcc -fsyntax-only -include sys/timex.h -xc - >/dev/null 2>/dev/null && echo 1 || echo 0)
endif

ifeq ($(SEXP_USE_NTP_GETTIME),1)
CPPFLAGS += -DSEXP_USE_NTPGETTIME
endif

ifndef $(SEXP_USE_INTTYPES)
SEXP_USE_INTTYPES := $(shell echo "main(){int_least8_t x;}" | gcc -fsyntax-only -include inttypes.h -xc - >/dev/null 2>/dev/null && echo 1 || echo 0)
endif

ifeq ($(SEXP_USE_INTTYPES),1)
CPPFLAGS += -DSEXP_USE_INTTYPES
endif