gdb

$ gdb idesk
GNU gdb (GDB) 11.1
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Reading symbols from idesk...
(gdb) run
Starting program: /usr/bin/idesk 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
 Idesk starting in :0.0
/usr/include/c++/11.1.0/bits/stl_vector.h:1045: std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = AbstractIconConfig*; _Alloc = std::allocator<AbstractIconConfig*>; std::vector<_Tp, _Alloc>::reference = AbstractIconConfig*&; std::vector<_Tp, _Alloc>::size_type = long unsigned int]: Assertion '__n < this->size()' failed.

Program received signal SIGABRT, Aborted.
0x00007ffff79fdd22 in raise () from /usr/lib/libc.so.6
(gdb) where
#0  0x00007ffff79fdd22 in raise () from /usr/lib/libc.so.6
#1  0x00007ffff79e7862 in abort () from /usr/lib/libc.so.6
#2  0x000055555555ffed in std::__replacement_assert (__file=0x55555558f518 "/usr/include/c++/11.1.0/bits/stl_vector.h", __line=1045, 
    __function=0x55555558f3e0 "std::vector<_Tp, _Alloc>::reference std::vector<_Tp, _Alloc>::operator[](std::vector<_Tp, _Alloc>::size_type) [with _Tp = AbstractIconConfig*; _Alloc = std::allocator<AbstractIconConfig*>; std::vector"..., __condition=0x55555558f3c8 "__n < this->size()") at /usr/include/c++/11.1.0/x86_64-pc-linux-gnu/bits/c++config.h:504
#3  0x0000555555574f2c in std::vector<AbstractIconConfig*, std::allocator<AbstractIconConfig*> >::operator[] (this=0x5555555cacb8, __n=12) at /usr/include/c++/11.1.0/bits/stl_vector.h:1045
#4  0x000055555557468f in AbstractConfig::nextIcon (this=0x5555555cacb0) at /tmp/idesk/src/idesk-0.7.5/src/AbstractClasses.h:287
#5  0x000055555555de8f in XDesktopContainer::loadIcons (this=0x5555555bb8e0) at XDesktopContainer.cpp:177
#6  0x000055555555d243 in XDesktopContainer::run (this=0x5555555bb8e0) at XDesktopContainer.cpp:51
#7  0x0000555555589ff7 in Application::startIdesk (this=0x5555555bb8b0) at App.cpp:89
#8  0x0000555555589b85 in Application::Application (this=0x5555555bb8b0, arg=1, args=0x7fffffffe558) at App.cpp:35
#9  0x000055555558d65a in main (argc=1, argv=0x7fffffffe558) at Main.cpp:29

PKGBUILD

# Maintainer: Brian Bidulock <bidulock@openss7.org>
# Contributor: Sergej Pupykin <pupykin.s+arch@gmail.com>
# Contributor: Claudio Sabattoli <gasherbrum3@alice.it>
# Contributor: Ole Ernst <olebowle@gmx.com>

pkgname=idesk
pkgver=0.7.5
pkgrel=10
pkgdesc="gives users of minimal wm's (fluxbox, blackbox, openbox, windowmaker...) icons on their desktop"
arch=('x86_64' 'i686')
url="https://sourceforge.net/projects/idesk/"
license=('GPL')
depends=('pkgconfig' 'imlib2' 'libpng' 'libxpm' 'libxft' 'gcc-libs')
source=("http://downloads.sourceforge.net/sourceforge/idesk/$pkgname-$pkgver.tar.bz2"
	imlib2-config.patch)
sha256sums=('d4b7ea5dcf6d49d83e2df9512d4c6388f11632a702b14f42a1bc6bffb617b3d3'
            'a610f7be40e4540f8f557f739f44664cd773b060282d8c7051efde457a979e92')

prepare() {
  cd $pkgname-$pkgver
  sed -i \
    -e '1,1i#include <unistd.h>' \
    -e '1,1i#include <sys/stat.h>' \
    -e '1,1i#include <sys/types.h>' \
    src/DesktopConfig.cpp
  sed -i 's/return iconConfigList\[++iterCtr\];/return ++iterCtr < iconConfigList.size() ? iconConfigList\[iterCtr\] : NULL;/' src/AbstractClasses.h
  sed -i 's#usr/local#usr#' examples/default.lnk
  patch -Np2 -b -z .orig <../imlib2-config.patch
  autoreconf -fiv
  sed -i \
    -e 's#IMLIB2_LIBS=.*#IMLIB2_LIBS=-lImlib2#g' \
    -e 's#IMLIB_LIBS=.*#IMLIB_LIBS="-L/usr/lib -Wl,-O1,--sort-common,--as-needed,-z,relro -ljpeg -ltiff -lgif -lpng -lz -lm -lXext -lXext -lX11 -lImlib2"#g' \
    configure
}

build() {
  cd $pkgname-$pkgver
  ./configure --prefix=/usr
  make
}

package() {
  cd $pkgname-$pkgver
  make DESTDIR="$pkgdir" install
}