graphics/brlcad: Fix 32bit build.

Signed-off-by: Andrew Clemons <andrew.clemons@gmail.com>

Signed-off-by: Willy Sudiarto Raharjo <willysr@slackbuilds.org>

graphics/brlcad/brlcad-7.32.4-skip-gstep.patch

@@ -0,0 +1,12 @@
+--- a/db/nist/CMakeLists.txt
++++ b/db/nist/CMakeLists.txt
+@@ -10,7 +10,8 @@ set(NIST_SAMPLE_MODELS
+ )
+ 
+ foreach(im ${NIST_SAMPLE_MODELS})
+-  ADD_G_TARGET(${im} "BRL-CAD Geometry Models/Sample")
++#  disabled because this often segfaults
++#  ADD_G_TARGET(${im} "BRL-CAD Geometry Models/Sample")
+ endforeach(im ${NIST_SAMPLE_MODELS})
+ 
+ CMAKEFILES(

graphics/brlcad/brlcad.SlackBuild

@@ -19,11 +19,13 @@
 # Previous version wouldn't build, updated for v7.32.4, and still
 # had to patch that.
 
+# 20220321 acl: Modified by SlackBuilds.org: fix build on 15.0 32bit.
+
 cd $(dirname $0) ; CWD=$(pwd)
 
 PRGNAM=brlcad
 VERSION=${VERSION:-7.32.4}
-BUILD=${BUILD:-1}
+BUILD=${BUILD:-2}
 TAG=${TAG:-_SBo}
 PKGTYPE=${PKGTYPE:-tgz}
 
@@ -79,6 +81,10 @@ find -L . \
 # https://github.com/BRL-CAD/brlcad/commit/b0dd45620f1ffdd8814069df091b20e8780e1b3e
 patch -p1 < $CWD/fix-step-g-segfault.diff
 
+# thanks arch maintainers.
+# fixes build on i586.
+patch -p1 < $CWD/brlcad-7.32.4-skip-gstep.patch
+
 mkdir -p build
 cd build
 # There is a "known issue" according to the guys on #brlcad and we need