[ruby-core:113312] [Ruby master Bug#19612] Embed error

Issue #19612 has been updated by nobu (Nobuyoshi Nakada).

Status changed from Open to Feedback

I suspect the `CC` is different from the compiler used to build the ruby.

----------------------------------------
Bug #19612: Embed error
https://bugs.ruby-lang.org/issues/19612#change-102869

* Author: hdiwan415 (Hasan Diwan)
* Status: Feedback
* Priority: Normal
* ruby -v: ruby 3.2.0 (2022-12-25 revision a528908271) [x86_64-linux]
* Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN
----------------------------------------
Makefile:
```makefile
INC_DIRS=$(HOME)/.rvm/rubies/ruby-3.2.0/include/ruby/ 
LIB=$(HOME)/.rvm/rubies/ruby-3.2.0/lib/
# Thanks to Job Vranish (https://spin.atomicobject.com/2016/08/26/makefile-c-projects/)
TARGET_EXEC := dotiw

BUILD_DIR := ./build
SRC_DIRS := .

# Find all the C and C++ files we want to compile
# Note the single quotes around the * expressions. The shell will incorrectly expand these otherwise, but we want to send the * directly to the find command.
SRCS := $(shell find $(SRC_DIRS) -name '*.cpp' -or -name '*.c' -or -name '*.s')

# Prepends BUILD_DIR and appends .o to every src file
# As an example, ./your_dir/hello.cpp turns into ./build/./your_dir/hello.cpp.o
OBJS := $(SRCS:%=$(BUILD_DIR)/%.o)

# String substitution (suffix version without %).
# As an example, ./build/hello.cpp.o turns into ./build/hello.cpp.d
DEPS := $(OBJS:.o=.d)

# Add a prefix to INC_DIRS. So moduleA would become -ImoduleA. GCC understands this -I flag
INC_FLAGS := $(addprefix -I,$(INC_DIRS))

# The -MMD and -MP flags together generate Makefiles for us!
# These files will have .d instead of .o as the output.
CPPFLAGS := $(INC_FLAGS) -MMD -MP

# The final build step.
$(BUILD_DIR)/$(TARGET_EXEC): $(OBJS)
	$(CC) $(OBJS) -o $@ $(LDFLAGS) $(LIB) -lruby

# Build step for C source
$(BUILD_DIR)/%.c.o: %.c
	mkdir -p $(dir $@)
	$(CC) $(CPPFLAGS) $(CFLAGS) -c $< -o $@

# Build step for C++ source
$(BUILD_DIR)/%.cpp.o: %.cpp
	mkdir -p $(dir $@)
	$(CXX) $(CPPFLAGS) $(CXXFLAGS) -c $< -o $@


.PHONY: clean
	clean:
	rm -r $(BUILD_DIR)

# Include the .d makefiles. The - at the front suppresses the errors of missing
# Makefiles. Initially, all the .d files will be missing, and we don't want those
# errors to show up.
-include $(DEPS)
```

dotiw.c:
```C
#include "ruby.h"

int main(int argc, char* argv[])
{
	int state = 0;	
	/* construct the VM */
	ruby_init();
	ruby_script(argv[0]);
	ruby_init_loadpath();
	void* node = ruby_options(2, "puts \"hello world!\"");
	if (ruby_executable_node(node, &state))
	{
		state = ruby_exec_node(node);
	}
	if (state)
	{
		/* handle exception, perhaps */
	}

	return ruby_cleanup(state);
}
```

Finally, a compile log:

I saw "If you encounter this message, can you file a bug report?"" here's my bug report. 



---Files--------------------------------
compile.log (40.6 KB)


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