From eaef2ea44cc6f3d5f637a95ff0f171b0cf7c6acc Mon Sep 17 00:00:00 2001
From: Mattias Andrée <m@maandree.se>
Date: Sun, 22 Feb 2026 13:06:33 +0100
Subject: m fixes
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Signed-off-by: Mattias Andrée <m@maandree.se>
---
 Makefile  |  2 +-
 README    | 10 +++++-----
 config.mk |  4 ++--
 exec-as.1 |  8 ++++----
 exec-as.c |  5 ++++-
 5 files changed, 16 insertions(+), 13 deletions(-)

diff --git a/Makefile b/Makefile
index 914e682..6feb7b6 100644
--- a/Makefile
+++ b/Makefile
@@ -13,7 +13,7 @@ all: exec-as test
 	$(CC) -c -o $@ $< $(CFLAGS) $(CPPFLAGS)
 
 check: exec-as test
-	test "$$(./exec-as ./test 1 2 3)"  = "1,3"
+	test "$$(./exec-as ./test 1 2 3)" = "1,3"
 
 install: exec-as
 	mkdir -p -- "$(DESTDIR)$(PREFIX)/bin"
diff --git a/README b/README
index 26a3b28..1bb3ece 100644
--- a/README
+++ b/README
@@ -11,18 +11,18 @@ DESCRIPTION
 
 NOTES
 	At least one argument is required. Since this is not
-	a builtin function, it cannot be used as exec(1) without
+	a built-in function, it cannot be used as exec(1) without
 	arguments to set file descriptors.
 
-	Because this is not a builtin function, running this
-	program would normally do an fork–exec rather than
+	Because this is not a built-in function, running this
+	program would normally do a fork–exec rather than
 	just an exec. To just perform an exec, you need to
 	use exec(1) too: exec exec-as
 
 EXAMPLES
 	'exec-as bash -bash' will run the first program in
-	$PATH named bash, and set argv[0] to -bash (making it
-	a login shell.) You can add addition argument as needed.
+	$PATH named bash, and set argv[0] to -bash (making it a
+	login shell.) You can add additional arguments as needed.
 
 SEE ALSO
 	exec(1), exec(3)
diff --git a/config.mk b/config.mk
index aa81003..bc78e3e 100644
--- a/config.mk
+++ b/config.mk
@@ -1,8 +1,8 @@
 PREFIX    = /usr
 MANPREFIX = $(PREFIX)/share/man
 
-CC = cc
+CC = c99
 
 CPPFLAGS = -D_DEFAULT_SOURCE -D_BSD_SOURCE -D_XOPEN_SOURCE=700
-CFLAGS   = -std=c99 -Wall -O2
+CFLAGS   =
 LDFLAGS  = -s
diff --git a/exec-as.1 b/exec-as.1
index a52199f..a550f62 100644
--- a/exec-as.1
+++ b/exec-as.1
@@ -20,12 +20,12 @@ and the following arguments for the following values in
 .BR argv .
 .SH NOTES
 At least one argument is required. Since this is not
-a builtin function, it cannot be used as
+a built-in function, it cannot be used as
 .BR exec (1)
 without arguments to set file descriptors.
 .PP
-Because this is not a builtin function, running this
-program would normally do an fork–exec rather than
+Because this is not a built-in function, running this
+program would normally do a fork–exec rather than
 just an exec. To just perform an exec, you need to
 use
 .BR exec (1)
@@ -41,7 +41,7 @@ and set
 .B argv[0]
 to
 .B \-bash
-(making it a login shell.) You can add addition argument as needed.
+(making it a login shell.) You can add additional arguments as needed.
 .SH "SEE ALSO"
 .BR exec (1),
 .BR exec (3)
diff --git a/exec-as.c b/exec-as.c
index 64a0f27..a5f5ed6 100644
--- a/exec-as.c
+++ b/exec-as.c
@@ -8,11 +8,14 @@
 int
 main(int argc, char *argv[])
 {
+	int ret;
 	if (argc < 2) {
 		fprintf(stderr, "usage: %s command [argv0 [arg ...]]\n", argc ? argv[0] : "exec-as");
+		ret = 125;
 	} else {
 		execvp(argv[1], &argv[2]);
+		ret = errno == ENOENT ? 127 : 126;
 		fprintf(stderr, "%s: execvp %s: %s\n", argv[0], argv[1], strerror(errno));
 	}
-	return 138;
+	return ret;
 }
-- 
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