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build: Have configure prefer $CC over gcc; tcc over gcc, gcc over cc.

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Reported by Vagrant Cascadian.

* configure (string->version): Prefer for most-dotted string.  Fixes
makeinfo version.
(check-program-version): Prefer displaying of command, if single word.
(main): Check for $CC --version, $CC -v.  Prefer $CC over gcc; tcc over
gcc, gcc over cc.
This commit is contained in:
Jan Nieuwenhuizen 2019-12-13 17:21:53 +01:00
parent 36b2857d5b
commit e984f7213f
No known key found for this signature in database
GPG key ID: F3C1A0D9C1D65273
1 changed files with 35 additions and 21 deletions
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56
configure vendored
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@ -155,7 +155,7 @@ MES_ARENA=100000000 exec ${SCHEME-guile} -L . --no-auto-compile -e '(configure)'
(data dependency-data)
(version-found dependency-version-found))
(define* (make-dep name #:key (version '(0)) optional? (version-option "--version") (commands (list name)) file-name data)
(define* (make-dep name #:key (version '()) optional? (version-option "--version") (commands (list name)) file-name data)
(let* ((env-var (getenv (name->shell-name name)))
(commands (if env-var (cons env-var commands) commands)))
(make-dependency name version optional? version-option commands file-name data #f)))
@ -186,7 +186,12 @@ MES_ARENA=100000000 exec ${SCHEME-guile} -L . --no-auto-compile -e '(configure)'
(let ((split (string-tokenize string
(char-set-adjoin char-set:digit #\.))))
(and (pair? split)
(let* ((version (sort split (lambda (a b) (> (string-length a) (string-length b)))))
(let* ((version (sort split (lambda (a b)
(let ((len-a (length (string-split a #\.)))
(len-b (length (string-split b #\.))))
(cond ((> len-a len-b) #t)
((< len-a len-b) #f)
(else (> (string-length a) (string-length b))))))))
(version (car version))
(version (string-tokenize version
(char-set-complement (char-set #\.)))))
@ -198,16 +203,17 @@ MES_ARENA=100000000 exec ${SCHEME-guile} -L . --no-auto-compile -e '(configure)'
(version-option (dependency-version-option dependency))
(commands (dependency-commands dependency)))
(let loop ((commands commands))
(if (null? commands) dependency
(if (or (null? commands)
(not (car commands))) dependency
(let ((command (car commands)))
(stdout "checking for ~a~a... " name
(stdout "checking for ~a~a... " (if (string-index command #\space) name command)
(if (null? expected) ""
(format #f " [~a]" (version->string expected))))
(let* ((output (gulp-pipe (string-append command " " (if version-option version-option ""))))
(actual (string->version output))
(pass? (and actual (tuple< expected actual)))
(dependency (set-field dependency (dependency-version-found) actual)))
(stdout "~a ~a\n" (if pass? (if (pair? actual) "" " yes")
(stdout "~a ~a\n" (if pass? (if (pair? actual) "" "yes")
(if actual " no, found" "no"))
(or (version->string actual) ""))
(if pass? (let ((file-name (or (PATH-search-path command)
@ -437,9 +443,9 @@ Some influential environment variables:
(stderr "configure args=~s\n" args))
(for-each (lambda (v) (apply setenv (string-split v #\=))) vars)
(let* ((cross? (not (equal? host-type build-type)))
(gcc (or (getenv "CC") (if cross? (string-append host-type "-" "gcc") "gcc")))
(tcc (or (getenv "TCC") "tcc"))
(mescc (or (getenv "MESCC") "mescc"))
(gcc (if cross? (string-append host-type "-" "gcc") "gcc"))
(tcc (if cross? (string-append host-type "-" "tcc") "tcc"))
(mescc (if cross? (string-append host-type "-" "mescc") "mescc"))
(deps (fold (lambda (program results)
(cons (check-program-version program) results))
'()
@ -451,14 +457,18 @@ Some influential environment variables:
(make-dep "mes" #:version '(0 20) #:optional? #t)
(make-dep "guix" #:version '(0 13) #:optional? #t)
(make-dep "ar" #:version '(2 10) #:optional? #t)
(make-dep "sh" #:version '(0) #:optional? #t)
(make-dep "sh" #:optional? #t)
(make-dep "bash" #:version '(2 0) #:optional? #t)
(make-dep "guild" #:version '(2 0) #:commands '("guild" "guile-tools" "true"))
(make-dep "cc" #:commands (list gcc "cc" tcc mescc) #:optional? #t)
(make-dep "tcc" #:commands (list tcc "tcc") #:optional? #t #:version-option "-v")
(make-dep "mescc" #:commands (list mescc "mescc") #:optional? #t)
(make-dep "CC" #:commands `(,(getenv "CC")) #:optional? #t)
(make-dep "CC-v" #:commands `(,(getenv "CC")) #:optional? #t #:version-option "-v")
(make-dep "cc" #:commands '("cc") #:optional? #t)
(make-dep "gcc" #:commands `(,gcc "gcc") #:optional? #t)
(make-dep "mescc" #:commands `(,mescc "mescc") #:optional? #t)
(make-dep "tcc" #:commands `(,tcc "tcc") #:optional? #t #:version-option "-v")
(make-dep "cc-v" #:commands '("cc") #:optional? #t #:version-option "-v")
(make-dep "make" #:optional? #t #:commands '("gmake" "make"))
(make-dep "makeinfo" #:optional? #t)
(make-dep "makeinfo" #:version '(6) #:optional? #t)
(make-dep "dot" #:version-option "-V" #:optional? #t)
(make-dep "help2man" #:version '(1 47) #:optional? #t)
(make-dep "perl" #:version '(5) #:optional? #t))))
@ -467,8 +477,12 @@ Some influential environment variables:
deps)
deps))
(guile (or guile "guile"))
(cc (or (file-name "cc" deps)
(cc (or (file-name "CC" deps)
(file-name "CC-v" deps)
(file-name "tcc" deps)
(file-name "gcc" deps)
(file-name "cc" deps)
(file-name "cc-v" deps)
(file-name "mescc" deps)))
(deps (if cc
(cons* (check-header-c cc (make-dep "limits.h"))
@ -494,15 +508,15 @@ Some influential environment variables:
deps))
(mesc? (file-name "cc is MES C" deps))
(deps (if cc
(cons (check-compile-c cc (make-dep "cc is Tiny CC" #:data "#if !defined (__TINYC__)
(cons (check-compile-c cc (make-dep "cc is Tiny C" #:data "#if !defined (__TINYC__)
#error no tinycc
#endif
"))
deps)
deps))
(tcc? (file-name "cc is Tiny CC" deps))
(tcc? (file-name "cc is Tiny C" deps))
(deps (if cc
(cons (check-link-c cc (make-dep "if cc can create executables" #:data "int main () {return 0;}"))
(cons (check-link-c cc (make-dep "whether cc can create executables" #:data "int main () {return 0;}"))
deps)
deps))
(system-libc? (and with-system-libc? (file-name "if cc can create executables" deps)))
@ -521,7 +535,7 @@ Some influential environment variables:
(cut member <> '("pc" "portbld" "unknown")))
(cdr host-type-list))))
(mes-kernel (if (string-prefix? "freebsd" mes-kernel) "freebsd" mes-kernel))
(compiler (cond (gcc? "gcc") (tcc? "gcc") (else "mescc")))
(mes-compiler (cond (gcc? "gcc") (tcc? "gcc") (else "mescc")))
(mes-system (string-join (list mes-cpu mes-kernel "mes") "-"))
(bash (or (and (file-exists? "/bin/bash") "/bin/bash")
(file-name "bash" deps)
@ -572,7 +586,7 @@ See \"Porting GNU Mes\" in the manual, or try --with-courage\n" mes-system)
("@bootstrap@" . ,(if with-bootstrap? "true" "false"))
("@courageous@" . ,(if with-courage? "true" "false"))
("@compiler@" . ,compiler)
("@compiler@" . ,mes-compiler)
("@mes_bits@" . ,mes-bits)
("@mes_kernel@" . ,mes-kernel)
("@mes_cpu@" . ,mes-cpu)
@ -606,7 +620,7 @@ See \"Porting GNU Mes\" in the manual, or try --with-courage\n" mes-system)
("@AR@" . ,(or (file-name "ar" deps) ""))
("@BASH@" . ,bash)
("@CC@" . ,(or (file-name "cc" deps) (file-name "tcc" deps) ""))
("@CC@" . ,cc)
("@DIFF@" . ,(or (file-name "diff" deps) (string-append abs-top-builddir "/pre-inst-env diff.scm")))
("@DOT@" . ,(or (file-name "dot" deps) ""))
("@GIT@" . ,(or (file-name "git" deps) ""))
@ -682,7 +696,7 @@ See \"Porting GNU Mes\" in the manual, or try --with-courage\n" mes-system)
(let ((make (and=> (file-name "make" deps) basename)))
(display (string-append "
GNU Mes is configured for
compiler: " compiler "
compiler: " mes-compiler "
cpu: " mes-cpu "
bits: " mes-bits "
libc: " mes-libc "