cardpile.c: In function `colormatch':
cardpile.c:13: warning: implicit declaration of function `printf'
<internal>:0: warning: redundant redeclaration of 'printf'
cardpile.c:14: warning: implicit declaration of function `exit'
<internal>:0: warning: redundant redeclaration of 'exit'
cardpile.c:14: error: `EXIT_FAILURE' undeclared (first use in this function)
cardpile.c:14: error: (Each undeclared identifier is reported only once
cardpile.c:14: error: for each function it appears in.)
<internal>:0: warning: redundant redeclaration of 'printf'
<internal>:0: warning: redundant redeclaration of 'exit'
cardpile.c: In function `suittochar':
<internal>:0: warning: redundant redeclaration of 'printf'
<internal>:0: warning: redundant redeclaration of 'exit'
cardpile.c:38: error: `EXIT_FAILURE' undeclared (first use in this function)
cardpile.c: In function `ranktostring':
<internal>:0: warning: redundant redeclaration of 'printf'
<internal>:0: warning: redundant redeclaration of 'exit'
cardpile.c:61: error: `EXIT_FAILURE' undeclared (first use in this function)
cardpile.c: In function `successor':
<internal>:0: warning: redundant redeclaration of 'printf'
<internal>:0: warning: redundant redeclaration of 'exit'
cardpile.c:83: error: `EXIT_FAILURE' undeclared (first use in this function)