icewm: portability patch from Alpine.

srcpkgs/icewm/patches/backtrace_on_glibc.patch

@@ -0,0 +1,20 @@
+--- src/misc.cc
++++ src/misc.cc
+@@ -15,7 +15,7 @@
+ #include <libgen.h>
+ #endif
+ 
+-#ifdef linux
++#ifdef __GLIBC__
+ #include <execinfo.h>
+ #endif
+ 
+@@ -539,7 +539,7 @@ bool isreg(char const *path) {
+ }
+ 
+ void show_backtrace() {
+-#ifdef linux
++#ifdef __GLIBC__
+     const char head[] = "\nbacktrace:\n";
+     const char tail[] = "end\n";
+     void *array[20];

srcpkgs/icewm/template

@@ -1,7 +1,7 @@
 # Template file for 'icewm'
 pkgname=icewm
 version=1.3.8
-revision=1
+revision=2
 build_style=gnu-configure
 configure_args="--enable-shaped-decorations --enable-gradients"
 hostmakedepends="pkg-config"