./configure --with-xawdecode-prefix=/usr
...
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checking for snd_defaults_pcm_card in -lasound... no
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make
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/bin/sh ../libtool-nofpic --mode=compile gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/include/xawdecode    -Wall -D_REENTRANT -mcpu=i686 -O3 -fstrength-reduce -frerun-loop-opt -fexpensive-optimizations -fschedule-insns2 -fomit-frame-pointer -malign-double -fno-strict-aliasing -pipe -malign-loops=2 -malign-functions=2 -DCPU=686 -ffast-math  -I/usr/X11R6/include -DPREFIX='"/usr/local"' -c -o nagraudio.lo `test -f nagraudio.c || echo './'`nagraudio.c
rm -f .libs/nagraudio.lo
gcc -DHAVE_CONFIG_H -I. -I. -I.. -I/usr/include/xawdecode -Wall -D_REENTRANT -mcpu=i686 -O3 -fstrength-reduce -frerun-loop-opt -fexpensive-optimizations -fschedule-insns2 -fomit-frame-pointer -malign-double -fno-strict-aliasing -pipe -malign-loops=2 -malign-functions=2 -DCPU=686 -ffast-math -I/usr/X11R6/include -DPREFIX=\"/usr/local\" -c nagraudio.c -MT nagraudio.lo -MD -MP -MF .deps/nagraudio.TPlo  -DPIC -o .libs/nagraudio.lo
cc1: warning: -malign-loops is obsolete, use -falign-loops
cc1: warning: -malign-functions is obsolete, use -falign-functions
nagraudio.c:36:21: wavhead.h: No such file or directory
make[2]: *** [nagraudio.lo] Erreur 1
make[2]: Leaving directory `/home/jyp/downloads/xawdecode-plugin-1.4.1/src'
make[1]: *** [all-recursive] Erreur 1
make[1]: Leaving directory `/home/jyp/downloads/xawdecode-plugin-1.4.1'
make: *** [all] Erreur 2