From 8d5d586d753687da0b70adacebf7c47071680028 Mon Sep 17 00:00:00 2001
From: Jeremiah Orians <jeremiah@pdp10.guru>
Date: Sun, 21 Nov 2021 17:54:39 -0500
Subject: [PATCH] Make -E behavior possible and unique to enable spawning

---
 cc.c                      | 25 ++++++++++++++++++-------
 test/test0000/run_test.sh |  1 +
 test/test0001/run_test.sh |  1 +
 3 files changed, 20 insertions(+), 7 deletions(-)

diff --git a/cc.c b/cc.c
index 9587d79..8c04eee 100644
--- a/cc.c
+++ b/cc.c
@@ -42,10 +42,8 @@ int main(int argc, char** argv)
 	FILE* in = stdin;
 	FILE* destination_file = stdout;
 	init_macro_env("__M2__", "42", "__INTERNAL_M2__", 0); /* Setup __M2__ */
-	char* arch;
 	char* name;
 	char* hold;
-	int env=0;
 
 	int i = 1;
 	while(i <= argc)
@@ -54,6 +52,11 @@ int main(int argc, char** argv)
 		{
 			i += 1;
 		}
+		else if(match(argv[i], "-E") || match(argv[i], "--preprocess-only"))
+		{
+			PREPROCESSOR_MODE = TRUE;
+			i += 1;
+		}
 		else if(match(argv[i], "-f") || match(argv[i], "--file"))
 		{
 			if(NULL == hold_string)
@@ -140,12 +143,20 @@ int main(int argc, char** argv)
 	global_token = remove_line_comments(global_token);
 	preprocess();
 
-	fputs("\n/* Preprocessed source */\n", destination_file);
-	output_tokens(global_token, destination_file);
-
-	if (destination_file != stdout)
+	if(PREPROCESSOR_MODE)
 	{
-		fclose(destination_file);
+		fputs("\n/* Preprocessed source */\n", destination_file);
+		output_tokens(global_token, destination_file);
+
+		if (destination_file != stdout)
+		{
+			fclose(destination_file);
+		}
+	}
+	else
+	{
+		/* Put tempfile and spawning info here */
+		output_tokens(global_token, destination_file);
 	}
 	return EXIT_SUCCESS;
 }
diff --git a/test/test0000/run_test.sh b/test/test0000/run_test.sh
index be1dde2..db29a52 100755
--- a/test/test0000/run_test.sh
+++ b/test/test0000/run_test.sh
@@ -24,6 +24,7 @@ mkdir -p ${TMPDIR}
 
 # Build the test
 bin/M2-Mesoplanet \
+	-E \
 	-f test/test0000/return.c \
 	-o ${TMPDIR}/return.c \
 	|| exit 1
diff --git a/test/test0001/run_test.sh b/test/test0001/run_test.sh
index d84dc22..2471803 100755
--- a/test/test0001/run_test.sh
+++ b/test/test0001/run_test.sh
@@ -24,6 +24,7 @@ mkdir -p ${TMPDIR}
 
 # Build the test
 bin/M2-Mesoplanet \
+	-E \
 	-f test/test0001/return.c \
 	-o ${TMPDIR}/return.c \
 	|| exit 1