diff --git a/Makefile b/Makefile
index 9b379a3..ca4b8ca 100644
--- a/Makefile
+++ b/Makefile
@@ -1,8 +1,6 @@
 UNAMEOS = $(shell uname)
 
 COMMON_CFLAGS=		-Wall -Wextra -ggdb -std=c99 -pedantic -Ithirdparty -Ibuild -DPENGER
-SDL2_CFLAGS=		`pkg-config --cflags sdl2` $(COMMON_CFLAGS)
-RGFW_CFLAGS=		$(COMMON_CFLAGS)
 COMMON_LIBS=		-lm
 SDL2_LIBS=			`pkg-config --libs sdl2` $(COMMON_LIBS)
 ifeq ($(UNAMEOS),Darwin)
@@ -17,10 +15,10 @@ INSTALL?=		install
 all: Makefile sowon sowon_rgfw man
 
 sowon_rgfw: src/main_rgfw.c build/digits.h build/penger_walk_sheet.h
-	$(CC) $(RGFW_CFLAGS) -o sowon_rgfw src/main_rgfw.c $(RGFW_LIBS)
+	$(CC) $(COMMON_CFLAGS) -o sowon_rgfw src/main_rgfw.c $(RGFW_LIBS)
 
 sowon: src/main.c build/digits.h build/penger_walk_sheet.h
-	$(CC) $(SDL2_CFLAGS) -o sowon src/main.c $(SDL2_LIBS)
+	$(CC) $(COMMON_CFLAGS) -o sowon src/main.c $(SDL2_LIBS)
 
 build/digits.h: build/png2c ./assets/digits.png
 	./build/png2c ./assets/digits.png digits > build/digits.h
diff --git a/README.md b/README.md
index 609e690..803d762 100644
--- a/README.md
+++ b/README.md
@@ -8,6 +8,17 @@
 
 Dependencies: [SDL2](https://www.libsdl.org/download-2.0.php)
 
+### Fedora 42+
+Starting with Fedora 42, the native SDL2 library is no longer available.
+It was replaced by the SDL3 library. For programs that still require SDL2,
+an [`sdl2-compat`](https://github.com/libsdl-org/sdl2-compat) library,
+which provids a compatibility layer over SDL3, was introduced.
+```console
+$ sudo dnf install sdl2-compat-devel libXi-devel libXrandr-devel
+$ make
+$ ./sowon
+```
+
 ### Debian
 ```console
 $ sudo apt-get install libsdl2-dev
@@ -57,7 +68,7 @@ $ ./sowon
 | Key | Description |
 | --- | --- |
 | <kbd>SPACE</kbd> | Toggle pause |
-| <kbd>=</kbd> | Zoom in |
+| <kbd>=</kbd> or <kbd>+</kbd> | Zoom in |
 | <kbd>-</kbd> | Zoom out |
 | <kbd>0</kbd> | Zoom 100% |
 | <kbd>F5</kbd> | Restart |
diff --git a/src/main.c b/src/main.c
index 3692a9d..204be9b 100644
--- a/src/main.c
+++ b/src/main.c
@@ -5,7 +5,7 @@
 #include <string.h>
 #include <time.h>
 
-#include <SDL.h>
+#include <SDL2/SDL.h>
 
 #include "common.c"
 
@@ -115,7 +115,7 @@ void render_penger_at(SDL_Renderer *renderer, SDL_Texture *penger, float time, i
 }
 #endif
 
-int main(int argc, char **argv)
+int main(int argc, char *argv[])
 {
     State state = {0};
     parse_state_from_args(&state, argc, argv);