Problem compiling dovecot 2.2.31 on Solaris

[Luciano Mannucci]

I'm trying to compile under SunOS 5.8 Generic_117350-28 sun4u sparc SUNW,Ultra-5_10
(I know it's a bit oldish :-) and I get this error:

/bin/bash ../../libtool  --tag=CC   --mode=compile gcc
-DHAVE_CONFIG_H -I. -I../..     -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes
-Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2
-Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2  -MT pkcs5.lo -MD
-MP -MF .deps/pkcs5.Tpo -c -o pkcs5.lo pkcs5.c libtool: compile: gcc
-DHAVE_CONFIG_H -I. -I../.. -std=gnu99 -g -O2 -Wall -W -Wmissing-prototypes
-Wmissing-declarations -Wpointer-arith -Wchar-subscripts -Wformat=2
-Wbad-function-cast -fno-builtin-strftime -Wstrict-aliasing=2 -MT pkcs5.lo -MD
-MP -MF .deps/pkcs5.Tpo -c pkcs5.c -fPIC -DPIC -o .libs/pkcs5.o pkcs5.c:9:20:
error: stdint.h: No such file or directory make[4]: *** [pkcs5.lo] Error 1

What have I missed?

I did:

./configure --prefix=/usr --sysconfdir=/etc --localstatedir=/var\
  --mandir=/usr/share/man --docdir=/usr/share/doc/packages/dovecot\
  --disable-ipv6 --enable-header-install\

make

Is it reasonable?

Thanks in advance,

Luciano.
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