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I'm trying to compile my patched dwm on Debian.

This is my config.mk file, it's mostly the one from apt source dwm but the patches added some extra libraries, and I had to add the two -Ifreetype2 links myself:

# dwm version
VERSION = 6.1

# Customize below to fit your system

# paths
PREFIX = /usr/local
MANPREFIX = ${PREFIX}/share/man

# Xinerama, comment if you don't want it
XINERAMALIBS  = -lXinerama
XINERAMAFLAGS = -DXINERAMA

# freetype
FREETYPELIBS = -lfontconfig -lXft
FREETYPEINC = /usr/include/freetype2
# OpenBSD (uncomment)
#FREETYPEINC = ${X11INC}/freetype2

# includes and libs
INCS =  -I${X11INC} -I${FREETYPEINC} -I/usr/include/freetype2 -I/usr/include/libpng16
LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS}  -lXrender -lX11-xcb -lxcb -lxcb-res

# flags
CPPFLAGS += -D_BSD_SOURCE -D_POSIX_C_SOURCE=2 -DVERSION=\"${VERSION}\" ${XINERAMAFLAGS}
#CFLAGS   = -g -std=c99 -pedantic -Wall -O0 ${INCS} ${CPPFLAGS}
CFLAGS   += -std=c99 -pedantic -Wall -Wno-deprecated-declarations ${INCS} ${CPPFLAGS}
LDFLAGS  += -s ${LIBS}

# Solaris
#CFLAGS = -fast ${INCS} -DVERSION=\"${VERSION}\"
#LDFLAGS = ${LIBS}

# compiler and linker
CC = cc

This is the error I get when running make clean install

cc -o dwm drw.o dwm.o util.o -s -L -lX11 -lXinerama -lfontconfig -lXft  -lXrender -lX11-xcb -lxcb -lxcb-res
/usr/bin/ld: dwm.o: undefined reference to symbol 'XMapSubwindows'
/usr/bin/ld: //lib/x86_64-linux-gnu/libX11.so.6: error adding symbols: DSO missing from command line
collect2: error: ld returned 1 exit status
make: *** [Makefile:29: dwm] Error 1

But I have no idea how to fix this. Do I need a library installed? do I need to add somthing to the libs variable? please help!

I have tried looking at this, but I have no idea what a "DSO" is, nor how to fix the linkage.

Thorbjørn E. K. Christensen
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2 Answers2

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Not sure if it's the only problem but your link line...

cc -o dwm drw.o dwm.o util.o -s -L -lX11 -lXinerama -lfontconfig -lXft  -lXrender -lX11-xcb -lxcb -lxcb-res

appears to have a -L option with no parameter. Or, perhaps more correctly, it will assume that its parameter is -lX11. I'm assuming this is because the variable X11LIB is unspecified in your makefile. Not sure exactly how X11LIB is supposed to be specified with the makefile you're using but you could try setting it explicitly...

X11LIB := /usr/lib64 # Assumes the path to libX11.so is /usr/lib64/libX11.so
G.M.
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  • I changed ```LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender -lX11-xcb -lxcb -lxcb-res``` to ```LIBS = -${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender -lX11-xcb -lxcb -lxcb-res``` (removed the L), and it compiled, but now it crashes, when I try to log into dwm, I get sent straight to lightdm again. – Thorbjørn E. K. Christensen Sep 12 '19 at 09:37
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-L -lX11

This means "add a directory named -lX11 to the library search path". This is unlikely to have any effect as such directory probably does nit exist.

Remove -L or add a non-empty directory argument after it.

n. m. could be an AI
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  • I changed ```LIBS = -L${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender -lX11-xcb -lxcb -lxcb-res``` to ```LIBS = -${X11LIB} -lX11 ${XINERAMALIBS} ${FREETYPELIBS} -lXrender -lX11-xcb -lxcb -lxcb-res``` (removed the L), and it compiled, but now it crashes – Thorbjørn E. K. Christensen Sep 12 '19 at 09:37