6. 一些常见错误的解决方法

6.1 Error1 多出现在./configure阶段

/bin/sh../libtool --tag=CC   --mode=linkgcc  -g -O2 -no-undefined  -o xtractprotos

libtool:link: gcc -g -O2 -o .libs/xtractprotos   ./.libs/ -Wl,-rpath-Wl,/usr/local/lib

./.libs/:undefined reference to `sincos'

./.libs/:undefined reference to `sqrt'

./.libs/:undefined reference to `ceil'

./.libs/:undefined reference to `tan'

./.libs/:undefined reference to `powf'

./.libs/:undefined reference to `sqrtf'

./.libs/:undefined reference to `expf'

./.libs/:undefined reference to `log'

./.libs/:undefined reference to `sincosf'

./.libs/:undefined reference to `atan'

./.libs/:undefined reference to `logf'

./.libs/:undefined reference to `floorf'

./.libs/:undefined reference to `sin'

./.libs/:undefined reference to `tanf'

./.libs/:undefined reference to `atan2'

collect2:ld returned 1 exit status

make[2]:*** [xtractprotos] Error 1

make[2]:Leaving directory `/root/Downloads/leptonlib-1.67/src'

make[1]:*** [all-recursive] Error 1

make[1]:Leaving directory `/root/Downloads/leptonlib-1.67'

make: ***[all] Error 2