Here is the output from the commands you mentioned: $ pkg-config --cflags libpng -I/usr/include/libpng16 $ pkg-config --libs libpng -lpng16 -lz $ libpng-config --cflags -I/usr/include/libpng16 $ libpng-config --ldflags -L/usr/lib -lpng16 Here's the output from "make V=1": $ make V=1 make -C lib all make[1]: Entering directory '/home/emartenson/src/emacs/lib' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/emartenson/src/emacs/lib' make -C lib-src all make[1]: Entering directory '/home/emartenson/src/emacs/lib-src' make[1]: Nothing to be done for 'all'. make[1]: Leaving directory '/home/emartenson/src/emacs/lib-src' make -C src VCSWITNESS='$(srcdir)/../.git/logs/HEAD' all make[1]: Entering directory '/home/emartenson/src/emacs/src' make -C ../admin/charsets all make[2]: Entering directory '/home/emartenson/src/emacs/admin/charsets' make[2]: Nothing to be done for 'all'. make[2]: Leaving directory '/home/emartenson/src/emacs/admin/charsets' make -C ../admin/unidata charscript.el make[2]: Entering directory '/home/emartenson/src/emacs/admin/unidata' make[2]: Nothing to be done for 'charscript.el'. make[2]: Leaving directory '/home/emartenson/src/emacs/admin/unidata' gcc -Demacs -I. -I. -I../lib -I../lib -pthread -isystem /usr/include/gtk-3.0 -isystem /usr/include/at-spi2-atk/2.0 -isystem /usr/include/at-spi-2.0 -isystem /usr/include/dbus-1.0 -isystem /usr/lib/dbus-1.0/include -isystem /usr/include/gtk-3.0 -isystem /usr/include/gio-unix-2.0/ -isystem /usr/include/cairo -isystem /usr/include/pango-1.0 -isystem /usr/include/atk-1.0 -isystem /usr/include/cairo -isystem /usr/include/pixman-1 -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/harfbuzz -isystem /usr/include/libpng16 -isystem /usr/include/gdk-pixbuf-2.0 -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/alsa -pthread -isystem /usr/include/librsvg-2.0 -isystem /usr/include/gdk-pixbuf-2.0 -isystem /usr/include/cairo -isystem /usr/include/pixman-1 -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/libpng16 -isystem /usr/include/libpng16 -isystem /usr/include/libxml2 -isystem /usr/include/dbus-1.0 -isystem /usr/lib/dbus-1.0/include -pthread -isystem /usr/include/webkitgtk-4.0 -isystem /usr/include/gtk-3.0 -isystem /usr/include/at-spi2-atk/2.0 -isystem /usr/include/at-spi-2.0 -isystem /usr/include/dbus-1.0 -isystem /usr/lib/dbus-1.0/include -isystem /usr/include/gtk-3.0 -isystem /usr/include/gio-unix-2.0/ -isystem /usr/include/cairo -isystem /usr/include/pango-1.0 -isystem /usr/include/atk-1.0 -isystem /usr/include/cairo -isystem /usr/include/pixman-1 -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/harfbuzz -isystem /usr/include/libpng16 -isystem /usr/include/gdk-pixbuf-2.0 -isystem /usr/include/libsoup-2.4 -isystem /usr/include/libxml2 -isystem /usr/include/webkitgtk-4.0 -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -pthread -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -isystem /usr/include/freetype2 -isystem /usr/include/libpng16 -isystem /usr/include/harfbuzz -isystem /usr/include/glib-2.0 -isystem /usr/lib/glib-2.0/include -MMD -MF deps/.d -MP -isystem /usr/include/p11-kit-1 -fno-common -W -Wabi -Waddress -Waggressive-loop-optimizations -Wall -Wattributes -Wbool-compare -Wbool-operation -Wbuiltin-declaration-mismatch -Wbuiltin-macro-redefined -Wcast-align -Wchar-subscripts -Wchkp -Wclobbered -Wcomment -Wcomments -Wcoverage-mismatch -Wcpp -Wdangling-else -Wdate-time -Wdeprecated -Wdeprecated-declarations -Wdesignated-init -Wdisabled-optimization -Wdiscarded-array-qualifiers -Wdiscarded-qualifiers -Wdiv-by-zero -Wdouble-promotion -Wduplicated-cond -Wduplicate-decl-specifier -Wempty-body -Wendif-labels -Wenum-compare -Wexpansion-to-defined -Wextra -Wformat-contains-nul -Wformat-extra-args -Wformat-security -Wformat-signedness -Wformat-y2k -Wformat-zero-length -Wframe-address -Wfree-nonheap-object -Whsa -Wignored-attributes -Wignored-qualifiers -Wimplicit -Wimplicit-function-declaration -Wimplicit-int -Wincompatible-pointer-types -Winit-self -Wint-conversion -Wint-in-bool-context -Wint-to-pointer-cast -Winvalid-memory-model -Winvalid-pch -Wjump-misses-init -Wlogical-not-parentheses -Wlogical-op -Wmain -Wmaybe-uninitialized -Wmemset-elt-size -Wmemset-transposed-args -Wmisleading-indentation -Wmissing-braces -Wmissing-declarations -Wmissing-include-dirs -Wmissing-parameter-type -Wmissing-prototypes -Wmultichar -Wnarrowing -Wnested-externs -Wnonnull -Wnonnull-compare -Wnull-dereference -Wodr -Wold-style-declaration -Wold-style-definition -Wopenmp-simd -Woverflow -Wpacked -Wpacked-bitfield-compat -Wparentheses -Wpointer-arith -Wpointer-compare -Wpointer-sign -Wpointer-to-int-cast -Wpragmas -Wpsabi -Wrestrict -Wreturn-local-addr -Wreturn-type -Wscalar-storage-order -Wsequence-point -Wshift-count-negative -Wshift-count-overflow -Wshift-negative-value -Wsizeof-array-argument -Wsizeof-pointer-memaccess -Wstrict-aliasing -Wstrict-prototypes -Wsuggest-attribute=format -Wsuggest-attribute=noreturn -Wsuggest-final-methods -Wsuggest-final-types -Wswitch-bool -Wswitch-unreachable -Wtautological-compare -Wtrampolines -Wtrigraphs -Wuninitialized -Wunknown-pragmas -Wunused -Wunused-but-set-parameter -Wunused-but-set-variable -Wunused-function -Wunused-label -Wunused-local-typedefs -Wunused-macros -Wunused-result -Wunused-value -Wunused-variable -Wvarargs -Wvariadic-macros -Wvector-operation-performance -Wvolatile-register-var -Wwrite-strings -Walloc-size-larger-than=9223372036854775807 -Warray-bounds=2 -Wformat-truncation=2 -Wimplicit-fallthrough=5 -Wnormalized=nfc -Wshift-overflow=2 -Wstringop-overflow=2 -Wvla-larger-than=4031 -Wredundant-decls -Wno-missing-field-initializers -Wno-override-init -Wno-sign-compare -Wno-type-limits -Wno-unused-parameter -Wno-format-nonliteral -g3 -O2 -Wl,-znocombreloc -no-pie \ -o temacs dispnew.o frame.o scroll.o xdisp.o menu.o xmenu.o window.o charset.o coding.o category.o ccl.o character.o chartab.o bidi.o cm.o term.o terminal.o xfaces.o xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o gtkutil.o emacsgtkfixed.o dbusbind.o emacs.o keyboard.o macros.o keymap.o sysdep.o buffer.o filelock.o insdel.o marker.o minibuf.o fileio.o dired.o cmds.o casetab.o casefiddle.o indent.o search.o regex.o undo.o alloc.o data.o doc.o editfns.o callint.o eval.o floatfns.o fns.o font.o print.o lread.o dynlib.o emacs-module.o syntax.o unexelf.o bytecode.o process.o gnutls.o callproc.o region-cache.o sound.o atimer.o doprnt.o intervals.o textprop.o composite.o xml.o lcms.o inotify.o xwidget.o profiler.o decompress.o thread.o systhread.o sheap.o xfont.o ftfont.o xftfont.o ftxfont.o fontset.o fringe.o image.o xgselect.o json.o terminfo.o lastfile.o gmalloc.o ../lib/libegnu.a -ltiff -ljpeg -lgif -lXpm -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lXcomposite -lSM -lICE -lX11 -lX11-xcb -lxcb -lXrender -lXft -lasound -lrsvg-2 -lm -lgio-2.0 -lgdk_pixbuf-2.0 -lgobject-2.0 -lglib-2.0 -lcairo -lacl -lwebkit2gtk-4.0 -lgtk-3 -lgdk-3 -lpangocairo-1.0 -lpango-1.0 -latk-1.0 -lcairo-gobject -lcairo -lgdk_pixbuf-2.0 -lsoup-2.4 -lgio-2.0 -lgobject-2.0 -ljavascriptcoregtk-4.0 -lglib-2.0 -lrt -ldbus-1 -lXrandr -lXinerama -lXfixes -lXext -lxml2 -lgpm -ltinfo -lgio-2.0 -lgobject-2.0 -lglib-2.0 -lgobject-2.0 -lglib-2.0 -lfreetype -lfontconfig -lfreetype -lfreetype -lotf -lfreetype -lm17n-core -lm17n-flt -lm17n-core -lgnutls -lpthread -lanl -llcms2 -lm -lz -ldl -lsystemd -ljansson /bin/ld: image.o: undefined reference to symbol 'png_longjmp@@PNG16_0' /usr/lib/libpng16.so.16: error adding symbols: DSO missing from command line collect2: error: ld returned 1 exit status make[1]: *** [Makefile:606: temacs] Error 1 make[1]: Leaving directory '/home/emartenson/src/emacs/src' make: *** [Makefile:418: src] Error 2 On 12 February 2018 at 15:49, Paul Eggert wrote: > Elias Mårtenson wrote: > >> CCLD temacs >> /bin/ld: image.o: undefined reference to symbol 'png_longjmp@@PNG16_0' >> /usr/lib/libpng16.so.16: error adding symbols: DSO missing from command >> line >> > > Thanks for the heads-up. What is the last command to fail when you run > 'make V=1'? > > Also, in src/Makefile, what are the values of PNG_CFLAGS, and of LIBIMAGE? > > Also, what is the output of the following shell commands? (The session > below shows the output on Fedora 27.) Is the output correct for Arch Linux? > > $ pkg-config --cflags libpng > -I/usr/include/libpng16 > $ pkg-config --libs libpng > -lpng16 -lz > $ libpng-config --cflags > -I/usr/include/libpng16 > $ libpng-config --ldflags > -L/usr/lib64 -lpng16 >