ripopt 0.6.0

A memory-safe interior point optimizer in Rust
Documentation 
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# Makefile for the GAMS ripopt solver link
#
# Usage:
#   make                       — build libGamsRipopt.dylib (macOS) or .so (Linux)
#   make GAMS_PATH=/path/gams  — override GAMS installation path
#   make clean                 — remove build artifacts
#
# Prerequisites:
#   - GAMS installation (for C API headers and stubs)
#   - libripopt built: cargo build --release  (in repo root)

# --- Paths ---

# GAMS system directory (contains apifiles/)
GAMS_PATH ?= /Library/Frameworks/GAMS.framework/Versions/Current/Resources

# ripopt repo root
RIPOPT_ROOT ?= ..

# GAMS C API source directory
GAMS_API = $(GAMS_PATH)/apifiles/C/api

# --- Platform detection ---

UNAME := $(shell uname -s)
ifeq ($(UNAME),Darwin)
  SHLIB_EXT   = dylib
  SHLIB_FLAGS = -dynamiclib -install_name @rpath/libGamsRipopt.dylib
  RPATH_FLAG  = -Wl,-rpath,$(RIPOPT_ROOT)/target/release
else
  SHLIB_EXT   = so
  SHLIB_FLAGS = -shared
  RPATH_FLAG  = -Wl,-rpath,'$$ORIGIN'
endif

# --- Compiler ---

CC       = cc
CFLAGS   = -O2 -Wall -Wextra -Wno-unused-parameter \
           -I$(RIPOPT_ROOT) -I$(GAMS_API)
LDFLAGS  = -L$(RIPOPT_ROOT)/target/release -lripopt $(RPATH_FLAG)

# --- Targets ---

TARGET = libGamsRipopt.$(SHLIB_EXT)

GAMS_SRCS = $(GAMS_API)/gmomcc.c $(GAMS_API)/gevmcc.c

.PHONY: all clean install test

all: $(TARGET)

$(TARGET): gams_ripopt.c $(GAMS_SRCS)
	$(CC) $(CFLAGS) $(SHLIB_FLAGS) -o $@ $^ $(LDFLAGS)

install: $(TARGET)
	cp $(TARGET) $(GAMS_PATH)/
	cp $(RIPOPT_ROOT)/target/release/libripopt.$(SHLIB_EXT) $(GAMS_PATH)/
ifeq ($(UNAME),Darwin)
	install_name_tool -change \
		"$$(otool -L $(GAMS_PATH)/$(TARGET) | grep libripopt | awk '{print $$1}')" \
		@loader_path/libripopt.$(SHLIB_EXT) \
		$(GAMS_PATH)/$(TARGET)
	install_name_tool -id @loader_path/$(TARGET) $(GAMS_PATH)/$(TARGET)
endif
	@grep -q '^RIPOPT ' $(GAMS_PATH)/gmscmpun.txt 2>/dev/null || \
		(cp $(GAMS_PATH)/gmscmpun.txt $(GAMS_PATH)/gmscmpun.txt.bak && \
		awk '/^DEFAULTS$$/{print "RIPOPT 11 5 00010203040506070809 1 0 2 NLP DNLP RMINLP"; print "gmsgenus.run"; print "gmsgenux.out"; print "libGamsRipopt.dylib rip 1 0"}1' \
		$(GAMS_PATH)/gmscmpun.txt.bak > $(GAMS_PATH)/gmscmpun.txt)
	@echo "Installed to $(GAMS_PATH)"

test: install
	$(GAMS_PATH)/gams test_hs071.gms

clean:
	rm -f $(TARGET)